diff --git a/AM2RPortHelperLib/ModsBase.cs b/AM2RPortHelperLib/ModsBase.cs
index 4c30549..81416e5 100644
--- a/AM2RPortHelperLib/ModsBase.cs
+++ b/AM2RPortHelperLib/ModsBase.cs
@@ -11,6 +11,13 @@ public abstract class ModsBase
         OutputHandler?.Invoke(output);
     }
 
+    // Create before accessing anything
+    static ModsBase()
+    {
+        Directory.CreateDirectory(TempDir);
+        Directory.CreateDirectory(UtilDir);
+    }
+
     /// <summary>
     /// A temporary directory
     /// </summary>
diff --git a/AM2RPortHelperLib/RawMods.cs b/AM2RPortHelperLib/RawMods.cs
index d3bd75c..3e8358e 100644
--- a/AM2RPortHelperLib/RawMods.cs
+++ b/AM2RPortHelperLib/RawMods.cs
@@ -5,6 +5,8 @@ using System.Security;
 using System.Text.RegularExpressions;
 using SixLabors.ImageSharp;
 using UndertaleModLib;
+using UndertaleModLib.Decompiler;
+using UndertaleModLib.Models;
 using static AM2RPortHelperLib.Core;
 
 namespace AM2RPortHelperLib;
@@ -57,9 +59,13 @@ public abstract class RawMods : ModsBase
                 nameof(Resources.splashAndroid) + ".png" => Resources.splashAndroid,
                 _ => throw new InvalidDataException("SubCaseFunction was called with an improper resource!")
             };
-            
-            Image.Load(byteArray).SaveAsPng(TempDir + "/" + resource);
-            userIconPath = TempDir + "/" + resource;
+
+
+            string resPath = TempDir + "/" + resource;
+            if (File.Exists(resPath))
+                File.Delete(resPath);
+            Image.Load(byteArray).SaveAsPng(resPath);
+            userIconPath = resPath;
             return userIconPath;
         }
         
@@ -392,21 +398,21 @@ public abstract class RawMods : ModsBase
         switch (currentOS)
         {
             case ModOS.Windows:
-                File.Delete(assetsDir + "/AM2R.exe");
-                File.Delete(assetsDir + "/D3DX9_43.dll");
-                File.Move(assetsDir + "/data.win", assetsDir + "/game.ios");
+                File.Delete(extractDirectory + "/AM2R.exe");
+                File.Delete(extractDirectory + "/D3DX9_43.dll");
+                File.Move(extractDirectory + "/data.win", extractDirectory + "/game.ios");
                 break;
             case ModOS.Linux:
-                File.Delete(assetsDir + "/runner");
-                HelperMethods.DirectoryCopy(assetsDir + "/assets", assetsDir);
-                Directory.Delete(assetsDir + "/assets", true);
-                File.Move(assetsDir + "/game.unx", assetsDir + "/game.ios");
+                File.Delete(extractDirectory + "/runner");
+                HelperMethods.DirectoryCopy(extractDirectory + "/assets", extractDirectory);
+                Directory.Delete(extractDirectory + "/assets", true);
+                File.Move(extractDirectory + "/game.unx", extractDirectory + "/game.ios");
                 break;
             default: throw new NotSupportedException("The OS of the mod zip is unknown and thus not supported");
         }
 
-        File.Copy(GetProperPathToBuiltinIcons(nameof(Resources.icon), pathToIcon), extractDirectory + "/icon.png");
-        File.Copy(GetProperPathToBuiltinIcons(nameof(Resources.splash), pathToSplashScreen), extractDirectory + "/splash.png");
+        File.Copy(GetProperPathToBuiltinIcons(nameof(Resources.icon), pathToIcon), extractDirectory + "/icon.png", true);
+        File.Copy(GetProperPathToBuiltinIcons(nameof(Resources.splash), pathToSplashScreen), extractDirectory + "/splash.png", true);
         
         // Delete fonts folder if it exists, because I need to convert bytecode version from game and newer version doesn't support font loading
         if (Directory.Exists(extractDirectory + "/lang/fonts"))
@@ -417,47 +423,37 @@ public abstract class RawMods : ModsBase
 
         // Convert data.win to BC16 and get rid of not needed functions anymore
         SendOutput("Editing data.win to change ByteCode version and functions...");
-        string bin;
-        string args;
 
         // TODO: replace this via built-in lib
-        if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
-        {
-            bin = "\"" + UtilDir + "/UTMTCli/UndertaleModCli.exe\"";
-            args = "";
-        }
-        else
+        string modName;
+        FileInfo datafile = new FileInfo(extractDirectory + "/game.ios");
+
+        // Convert data file to ByteCode 16
         {
-            // First chmod the file, just in case
-            Process.Start("chmod", "+x \"" + UtilDir + "/UTMTCli/UndertaleModCli.dll\"");
-            bin = "dotnet";
-            args = "\"" + UtilDir + "/UTMTCli/UndertaleModCli.dll\" ";
-            // Also chmod the runner. Just in case.
-            Process.Start("chmod", "+x \"" + contentsDir + "/MacOS/Mac_Runner");
+            UndertaleData gmData;
+            using (FileStream fs = datafile.OpenRead())
+            {
+                gmData = UndertaleIO.Read(fs, SendOutput, SendOutput);
+                modName = gmData.GeneralInfo.DisplayName.Content;
+
+                ChangeToByteCode16(gmData);
+            }
+
+            using (FileStream fs = new FileInfo(extractDirectory + "/game.ios").OpenWrite())
+            {
+                UndertaleIO.Write(fs, gmData, SendOutput);
+            }
         }
 
-        ProcessStartInfo pStartInfo = new ProcessStartInfo
-        {
-            FileName = bin,
-            Arguments = args + "load \"" + extractDirectory + "/game.ios\" -s \"" + UtilDir + "/bc16AndRemoveFunctions.csx\" -o \"" + extractDirectory + "/game.ios\"",
-            CreateNoWindow = false
-        };
-        Process p = new Process { StartInfo = pStartInfo };
-        p.Start();
-        p.WaitForExit();
+        // Also chmod the runner. Just in case.
+        if (!RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+            Process.Start("chmod", "+x \"" + contentsDir + "/MacOS/Mac_Runner");
 
         // Copy assets to the place where they belong to
         SendOutput("Copy files over...");
         HelperMethods.DirectoryCopy(extractDirectory, assetsDir);
 
         // Edit config and plist to change display name
-        string modName;
-        FileInfo datafile = new FileInfo(extractDirectory + "/game.ios");
-        using (FileStream fs = datafile.OpenRead())
-        {
-            UndertaleData gmData = UndertaleIO.Read(fs, SendOutput, SendOutput);
-            modName = gmData.GeneralInfo.DisplayName.Content;
-        }
         // Escape invalid xml characters
         modName = SecurityElement.Escape(modName);
         SendOutput("Editing Runner references to AM2R...");
@@ -482,4 +478,171 @@ public abstract class RawMods : ModsBase
         // Clean up
         Directory.Delete(TempDir, true);
     }
+    private static void ChangeToByteCode16(UndertaleData Data)
+    {
+        if (Data is null) return;
+        
+        string currentBytecodeVersion = Data?.GeneralInfo.BytecodeVersion.ToString();
+        string game_name = Data.GeneralInfo.Name.Content;
+
+        bool is13 = false;
+
+        void ScriptError(string s) => Console.WriteLine(s, ConsoleColor.Red);
+        void ScriptMessage(string s) => Console.WriteLine(s);
+
+        if (!(Data.FORM.Chunks.ContainsKey("AGRP")))
+        {
+            ScriptError("Bytecode 13 is not supported.");
+            return;
+        }
+        if (Data?.GeneralInfo.BytecodeVersion == 14)
+        {
+            ScriptError("Bytecode 14 is not supported.");
+            return;
+        }
+
+        if (!((Data.GMS2_3 == false) && (Data.GMS2_3_1 == false) && (Data.GMS2_3_2 == false)))
+        {
+            ScriptError(game_name + "is GMS 2.3+ and is ineligible");
+            return;
+        }
+
+        if (!(Data.FORM.Chunks.ContainsKey("AGRP")))
+        {
+            is13 = true;
+            ScriptMessage("Bytecode 13 type game detected. The upgrading of this game is experimental.");
+            currentBytecodeVersion = "13";
+        }
+
+
+        if ((Data?.GeneralInfo.BytecodeVersion == 14) || (Data?.GeneralInfo.BytecodeVersion == 15) || (is13 == true))
+        {
+            if (Data?.GeneralInfo.BytecodeVersion <= 14)
+            {
+                foreach (UndertaleCode code in Data.Code)
+                {
+                    UndertaleCodeLocals locals = new UndertaleCodeLocals();
+                    locals.Name = code.Name;
+
+                    UndertaleCodeLocals.LocalVar argsLocal = new UndertaleCodeLocals.LocalVar();
+                    argsLocal.Name = Data.Strings.MakeString("arguments");
+                    argsLocal.Index = 0;
+
+                    locals.Locals.Add(argsLocal);
+
+                    code.LocalsCount = 1;
+                    code.GenerateLocalVarDefinitions(code.FindReferencedLocalVars(), locals); // Dunno if we actually need this line, but it seems to work?
+                    Data.CodeLocals.Add(locals);
+                }
+            }
+            if (!(Data.FORM.Chunks.ContainsKey("AGRP")))
+            {
+                Data.FORM.Chunks["AGRP"] = new UndertaleChunkAGRP();
+                var previous = -1;
+                var j = 0;
+                for (var i = -1; i < Data.Sounds.Count - 1; i++)
+                {
+                    UndertaleSound sound = Data.Sounds[i + 1];
+                    bool flagCompressed = sound.Flags.HasFlag(UndertaleSound.AudioEntryFlags.IsCompressed);
+                    bool flagEmbedded = sound.Flags.HasFlag(UndertaleSound.AudioEntryFlags.IsEmbedded);
+                    if (i == -1)
+                    {
+                        if (!flagCompressed && !flagEmbedded)
+                        {
+                            sound.AudioID = -1;
+                        }
+                        else
+                        {
+                            sound.AudioID = 0;
+                            previous = 0;
+                            j = 1;
+                        }
+                    }
+                    else
+                    {
+                        if (!flagCompressed && !flagEmbedded)
+                            sound.AudioID = previous;
+                        else
+                        {
+                            sound.AudioID = j;
+                            previous = j;
+                            j++;
+                        }
+                    }
+                }
+                foreach (UndertaleSound sound in Data.Sounds)
+                {
+                    if ((sound.AudioID >= 0) && (sound.AudioID < Data.EmbeddedAudio.Count))
+                    {
+                        sound.AudioFile = Data.EmbeddedAudio[sound.AudioID];
+                    }
+                    sound.GroupID = 0;
+                }
+                Data.GeneralInfo.Build = 1804;
+                var newProductID = new byte[] { 0xBA, 0x5E, 0xBA, 0x11, 0xBA, 0xDD, 0x06, 0x60, 0xBE, 0xEF, 0xED, 0xBA, 0x0B, 0xAB, 0xBA, 0xBE };
+                Data.FORM.EXTN.productIdData.Add(newProductID);
+                Data.Options.Constants.Clear();
+                Data.Options.Constants.Add(new UndertaleOptions.Constant() { Name = Data.Strings.MakeString("@@SleepMargin"), Value = Data.Strings.MakeString(1.ToString()) });
+                Data.Options.Constants.Add(new UndertaleOptions.Constant() { Name = Data.Strings.MakeString("@@DrawColour"), Value = Data.Strings.MakeString(0xFFFFFFFF.ToString()) });
+            }
+            Data.FORM.Chunks["LANG"] = new UndertaleChunkLANG();
+            Data.FORM.LANG.Object = new UndertaleLanguage();
+            Data.FORM.Chunks["GLOB"] = new UndertaleChunkGLOB();
+            String[] order = { "GEN8", "OPTN", "LANG", "EXTN", "SOND", "AGRP", "SPRT", "BGND", "PATH", "SCPT", "GLOB", "SHDR", "FONT", "TMLN", "OBJT", "ROOM", "DAFL", "TPAG", "CODE", "VARI", "FUNC", "STRG", "TXTR", "AUDO" };
+            Dictionary<string, UndertaleChunk> newChunks = new Dictionary<string, UndertaleChunk>();
+            foreach (String name in order)
+                newChunks[name] = Data.FORM.Chunks[name];
+            Data.FORM.Chunks = newChunks;
+            Data.GeneralInfo.BytecodeVersion = 16;
+            ScriptMessage("Upgraded from " + currentBytecodeVersion + " to 16 successfully. Save the game to apply the changes.");
+            ScriptMessage("Trying to remove functions \"immersion_play_effect\", \"immersion_stop\" and \"font_replace\"!");
+            
+            RemoveFunctions();
+        }
+        else if (Data?.GeneralInfo.BytecodeVersion == 17)
+        {
+                ScriptMessage("Cancelled.");
+                return;
+        }
+        else if (Data?.GeneralInfo.BytecodeVersion == 16)
+        {
+            ScriptMessage("This is already bytecode 16.");
+            ScriptMessage("Trying to remove functions \"immersion_play_effect\", \"immersion_stop\" and \"font_replace\"!");
+            
+            RemoveFunctions();
+            
+            return;
+        }
+        else
+        {
+            string error = @"This game is not bytecode 13, 
+        14, 15, 16, or 17, and is not made in GameMaker 2.3
+        or greater. Please report this game to Grossley#2869
+        on Discord and provide the name of the game, where
+        you obtained it from, and additionally send the
+        data.win file of the game." + @"
+
+        Current status of game '" + game_name + @"':
+        GMS 2.3 == " + Data.GMS2_3 + @"
+        GMS 2.3.1 == " + Data.GMS2_3_1 + @"
+        GMS 2.3.2 == " + Data.GMS2_3_2 + @"
+        Bytecode == " + (Data?.GeneralInfo.BytecodeVersion);
+            ScriptError(error);
+            return;
+        }
+
+        void RemoveFunctions()
+        {
+            List<UndertaleFunction> funcsToRemove = new List<UndertaleFunction>();
+            
+            foreach (UndertaleFunction func in Data.Functions)
+            {   
+                if (func.ToString() == "immersion_play_effect" || func.ToString() == "immersion_stop" || func.ToString() == "font_replace")
+                    funcsToRemove.Add(func);
+            }
+            
+            foreach (var func in funcsToRemove)
+                Data.Functions.Remove(func);    
+        }
+    }
 }
\ No newline at end of file
diff --git a/AM2RPortHelperLib/utils/UTMTCli/ICSharpCode.SharpZipLib.dll b/AM2RPortHelperLib/utils/UTMTCli/ICSharpCode.SharpZipLib.dll
deleted file mode 100755
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diff --git a/AM2RPortHelperLib/utils/UTMTCli/Microsoft.CodeAnalysis.CSharp.Scripting.dll b/AM2RPortHelperLib/utils/UTMTCli/Microsoft.CodeAnalysis.CSharp.Scripting.dll
deleted file mode 100755
index 8218d03..0000000
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diff --git a/AM2RPortHelperLib/utils/UTMTCli/Microsoft.CodeAnalysis.CSharp.dll b/AM2RPortHelperLib/utils/UTMTCli/Microsoft.CodeAnalysis.CSharp.dll
deleted file mode 100755
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diff --git a/AM2RPortHelperLib/utils/UTMTCli/Microsoft.CodeAnalysis.Scripting.dll b/AM2RPortHelperLib/utils/UTMTCli/Microsoft.CodeAnalysis.Scripting.dll
deleted file mode 100755
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diff --git a/AM2RPortHelperLib/utils/UTMTCli/Microsoft.CodeAnalysis.dll b/AM2RPortHelperLib/utils/UTMTCli/Microsoft.CodeAnalysis.dll
deleted file mode 100755
index 9b51cba..0000000
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diff --git a/AM2RPortHelperLib/utils/UTMTCli/Microsoft.Win32.SystemEvents.dll b/AM2RPortHelperLib/utils/UTMTCli/Microsoft.Win32.SystemEvents.dll
deleted file mode 100755
index d62f333..0000000
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diff --git a/AM2RPortHelperLib/utils/UTMTCli/Newtonsoft.Json.dll b/AM2RPortHelperLib/utils/UTMTCli/Newtonsoft.Json.dll
deleted file mode 100755
index 1ffeabe..0000000
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diff --git a/AM2RPortHelperLib/utils/UTMTCli/PropertyChanged.dll b/AM2RPortHelperLib/utils/UTMTCli/PropertyChanged.dll
deleted file mode 100755
index 571d594..0000000
Binary files a/AM2RPortHelperLib/utils/UTMTCli/PropertyChanged.dll and /dev/null differ
diff --git a/AM2RPortHelperLib/utils/UTMTCli/System.CommandLine.dll b/AM2RPortHelperLib/utils/UTMTCli/System.CommandLine.dll
deleted file mode 100755
index 6fbcda9..0000000
Binary files a/AM2RPortHelperLib/utils/UTMTCli/System.CommandLine.dll and /dev/null differ
diff --git a/AM2RPortHelperLib/utils/UTMTCli/System.Drawing.Common.dll b/AM2RPortHelperLib/utils/UTMTCli/System.Drawing.Common.dll
deleted file mode 100755
index 6ab3e30..0000000
Binary files a/AM2RPortHelperLib/utils/UTMTCli/System.Drawing.Common.dll and /dev/null differ
diff --git a/AM2RPortHelperLib/utils/UTMTCli/UTMTInfo.txt b/AM2RPortHelperLib/utils/UTMTCli/UTMTInfo.txt
deleted file mode 100644
index fb728b2..0000000
--- a/AM2RPortHelperLib/utils/UTMTCli/UTMTInfo.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-UTMTCLI version was taken from commit "ba31a5d16eab8b0a84899064fd97f8d0648dfdd8" (tag "v0.4.0.2")
-
-UndertaleModTool (https://github.com/krzys-h/UndertaleModTool) is licensed under GPLv3 just like this project.
\ No newline at end of file
diff --git a/AM2RPortHelperLib/utils/UTMTCli/UndertaleModCli.deps.json b/AM2RPortHelperLib/utils/UTMTCli/UndertaleModCli.deps.json
deleted file mode 100644
index a7a3079..0000000
--- a/AM2RPortHelperLib/utils/UTMTCli/UndertaleModCli.deps.json
+++ /dev/null
@@ -1,325 +0,0 @@
-{
-  "runtimeTarget": {
-    "name": ".NETCoreApp,Version=v5.0",
-    "signature": ""
-  },
-  "compilationOptions": {},
-  "targets": {
-    ".NETCoreApp,Version=v5.0": {
-      "UndertaleModCli/1.0.0": {
-        "dependencies": {
-          "Microsoft.CodeAnalysis.CSharp.Scripting": "3.9.0",
-          "Newtonsoft.Json": "13.0.1",
-          "System.CommandLine": "2.0.0-beta1.21308.1",
-          "UndertaleModLib": "1.0.0"
-        },
-        "runtime": {
-          "UndertaleModCli.dll": {}
-        }
-      },
-      "Microsoft.CodeAnalysis.Analyzers/3.0.0": {},
-      "Microsoft.CodeAnalysis.Common/3.9.0": {
-        "dependencies": {
-          "Microsoft.CodeAnalysis.Analyzers": "3.0.0",
-          "System.Collections.Immutable": "5.0.0",
-          "System.Memory": "4.5.4",
-          "System.Reflection.Metadata": "5.0.0",
-          "System.Runtime.CompilerServices.Unsafe": "5.0.0",
-          "System.Text.Encoding.CodePages": "4.5.1",
-          "System.Threading.Tasks.Extensions": "4.5.4"
-        },
-        "runtime": {
-          "lib/netcoreapp3.1/Microsoft.CodeAnalysis.dll": {
-            "assemblyVersion": "3.9.0.0",
-            "fileVersion": "3.900.21.12420"
-          }
-        }
-      },
-      "Microsoft.CodeAnalysis.CSharp/3.9.0": {
-        "dependencies": {
-          "Microsoft.CodeAnalysis.Common": "3.9.0"
-        },
-        "runtime": {
-          "lib/netcoreapp3.1/Microsoft.CodeAnalysis.CSharp.dll": {
-            "assemblyVersion": "3.9.0.0",
-            "fileVersion": "3.900.21.12420"
-          }
-        }
-      },
-      "Microsoft.CodeAnalysis.CSharp.Scripting/3.9.0": {
-        "dependencies": {
-          "Microsoft.CSharp": "4.7.0",
-          "Microsoft.CodeAnalysis.CSharp": "3.9.0",
-          "Microsoft.CodeAnalysis.Common": "3.9.0",
-          "Microsoft.CodeAnalysis.Scripting.Common": "3.9.0"
-        },
-        "runtime": {
-          "lib/netcoreapp3.1/Microsoft.CodeAnalysis.CSharp.Scripting.dll": {
-            "assemblyVersion": "3.9.0.0",
-            "fileVersion": "3.900.21.12420"
-          }
-        }
-      },
-      "Microsoft.CodeAnalysis.Scripting.Common/3.9.0": {
-        "dependencies": {
-          "Microsoft.CodeAnalysis.Common": "3.9.0"
-        },
-        "runtime": {
-          "lib/netcoreapp3.1/Microsoft.CodeAnalysis.Scripting.dll": {
-            "assemblyVersion": "3.9.0.0",
-            "fileVersion": "3.900.21.12420"
-          }
-        }
-      },
-      "Microsoft.CSharp/4.7.0": {},
-      "Microsoft.NETCore.Platforms/5.0.0": {},
-      "Microsoft.Win32.SystemEvents/5.0.0": {
-        "dependencies": {
-          "Microsoft.NETCore.Platforms": "5.0.0"
-        },
-        "runtime": {
-          "lib/netstandard2.0/Microsoft.Win32.SystemEvents.dll": {
-            "assemblyVersion": "5.0.0.0",
-            "fileVersion": "5.0.20.51904"
-          }
-        },
-        "runtimeTargets": {
-          "runtimes/win/lib/netcoreapp3.0/Microsoft.Win32.SystemEvents.dll": {
-            "rid": "win",
-            "assetType": "runtime",
-            "assemblyVersion": "5.0.0.0",
-            "fileVersion": "5.0.20.51904"
-          }
-        }
-      },
-      "Newtonsoft.Json/13.0.1": {
-        "runtime": {
-          "lib/netstandard2.0/Newtonsoft.Json.dll": {
-            "assemblyVersion": "13.0.0.0",
-            "fileVersion": "13.0.1.25517"
-          }
-        }
-      },
-      "PropertyChanged.Fody/3.3.3": {
-        "runtime": {
-          "lib/netstandard2.1/PropertyChanged.dll": {
-            "assemblyVersion": "3.3.3.0",
-            "fileVersion": "3.3.3.0"
-          }
-        }
-      },
-      "SharpZipLib/1.3.3": {
-        "runtime": {
-          "lib/netstandard2.1/ICSharpCode.SharpZipLib.dll": {
-            "assemblyVersion": "1.3.3.11",
-            "fileVersion": "1.3.3.11"
-          }
-        }
-      },
-      "System.Collections.Immutable/5.0.0": {},
-      "System.CommandLine/2.0.0-beta1.21308.1": {
-        "dependencies": {
-          "Microsoft.CSharp": "4.7.0",
-          "System.Memory": "4.5.4"
-        },
-        "runtime": {
-          "lib/netstandard2.0/System.CommandLine.dll": {
-            "assemblyVersion": "2.0.0.0",
-            "fileVersion": "2.0.21.30801"
-          }
-        }
-      },
-      "System.Drawing.Common/5.0.2": {
-        "dependencies": {
-          "Microsoft.Win32.SystemEvents": "5.0.0"
-        },
-        "runtime": {
-          "lib/netcoreapp3.0/System.Drawing.Common.dll": {
-            "assemblyVersion": "5.0.0.2",
-            "fileVersion": "5.0.421.11614"
-          }
-        },
-        "runtimeTargets": {
-          "runtimes/unix/lib/netcoreapp3.0/System.Drawing.Common.dll": {
-            "rid": "unix",
-            "assetType": "runtime",
-            "assemblyVersion": "5.0.0.2",
-            "fileVersion": "5.0.421.11614"
-          },
-          "runtimes/win/lib/netcoreapp3.0/System.Drawing.Common.dll": {
-            "rid": "win",
-            "assetType": "runtime",
-            "assemblyVersion": "5.0.0.2",
-            "fileVersion": "5.0.421.11614"
-          }
-        }
-      },
-      "System.Memory/4.5.4": {},
-      "System.Reflection.Metadata/5.0.0": {},
-      "System.Runtime.CompilerServices.Unsafe/5.0.0": {},
-      "System.Text.Encoding.CodePages/4.5.1": {
-        "dependencies": {
-          "Microsoft.NETCore.Platforms": "5.0.0",
-          "System.Runtime.CompilerServices.Unsafe": "5.0.0"
-        }
-      },
-      "System.Threading.Tasks.Extensions/4.5.4": {},
-      "UndertaleModLib/1.0.0": {
-        "dependencies": {
-          "Microsoft.CSharp": "4.7.0",
-          "PropertyChanged.Fody": "3.3.3",
-          "SharpZipLib": "1.3.3",
-          "System.Drawing.Common": "5.0.2"
-        },
-        "runtime": {
-          "UndertaleModLib.dll": {}
-        }
-      }
-    }
-  },
-  "libraries": {
-    "UndertaleModCli/1.0.0": {
-      "type": "project",
-      "serviceable": false,
-      "sha512": ""
-    },
-    "Microsoft.CodeAnalysis.Analyzers/3.0.0": {
-      "type": "package",
-      "serviceable": true,
-      "sha512": "sha512-ojG5pGAhTPmjxRGTNvuszO3H8XPZqksDwr9xLd4Ae/JBjZZdl6GuoLk7uLMf+o7yl5wO0TAqoWcEKkEWqrZE5g==",
-      "path": "microsoft.codeanalysis.analyzers/3.0.0",
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-      "type": "package",
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-    "Microsoft.CodeAnalysis.CSharp/3.9.0": {
-      "type": "package",
-      "serviceable": true,
-      "sha512": "sha512-NTsiK3fnoZGemy4dBHrILwg9rL+jDnOJ7aixFu4EOWM1r6MZMrNCIhT2tO4AmIMdfICLPwj910uZRRLpbMnqHg==",
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-    },
-    "Microsoft.CodeAnalysis.CSharp.Scripting/3.9.0": {
-      "type": "package",
-      "serviceable": true,
-      "sha512": "sha512-6Sb2z76TKmgHY/+RHEyb0kFuc0leZyWESd5xx/GePL4wGUHvGtJ+9XoYrWNGfyNJVMtJGEnyCtGr4mMS90fhGw==",
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-    "Microsoft.CodeAnalysis.Scripting.Common/3.9.0": {
-      "type": "package",
-      "serviceable": true,
-      "sha512": "sha512-47scTiU65vHf0qYqNYpjyRKVIjULxXqkMaBWgG+UzRXvvXdI6EZtcllMQu1qAcyC8DU96muhiLn0shNYY+OnTg==",
-      "path": "microsoft.codeanalysis.scripting.common/3.9.0",
-      "hashPath": "microsoft.codeanalysis.scripting.common.3.9.0.nupkg.sha512"
-    },
-    "Microsoft.CSharp/4.7.0": {
-      "type": "package",
-      "serviceable": true,
-      "sha512": "sha512-pTj+D3uJWyN3My70i2Hqo+OXixq3Os2D1nJ2x92FFo6sk8fYS1m1WLNTs0Dc1uPaViH0YvEEwvzddQ7y4rhXmA==",
-      "path": "microsoft.csharp/4.7.0",
-      "hashPath": "microsoft.csharp.4.7.0.nupkg.sha512"
-    },
-    "Microsoft.NETCore.Platforms/5.0.0": {
-      "type": "package",
-      "serviceable": true,
-      "sha512": "sha512-VyPlqzH2wavqquTcYpkIIAQ6WdenuKoFN0BdYBbCWsclXacSOHNQn66Gt4z5NBqEYW0FAPm5rlvki9ZiCij5xQ==",
-      "path": "microsoft.netcore.platforms/5.0.0",
-      "hashPath": "microsoft.netcore.platforms.5.0.0.nupkg.sha512"
-    },
-    "Microsoft.Win32.SystemEvents/5.0.0": {
-      "type": "package",
-      "serviceable": true,
-      "sha512": "sha512-Bh6blKG8VAKvXiLe2L+sEsn62nc1Ij34MrNxepD2OCrS5cpCwQa9MeLyhVQPQ/R4Wlzwuy6wMK8hLb11QPDRsQ==",
-      "path": "microsoft.win32.systemevents/5.0.0",
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-    "Newtonsoft.Json/13.0.1": {
-      "type": "package",
-      "serviceable": true,
-      "sha512": "sha512-ppPFpBcvxdsfUonNcvITKqLl3bqxWbDCZIzDWHzjpdAHRFfZe0Dw9HmA0+za13IdyrgJwpkDTDA9fHaxOrt20A==",
-      "path": "newtonsoft.json/13.0.1",
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-    },
-    "PropertyChanged.Fody/3.3.3": {
-      "type": "package",
-      "serviceable": true,
-      "sha512": "sha512-2dHoq3+Y37J2g06RRyV57zMY9uVOq9JanPienXxineL1pIACCgxn8dL/f6C9I0L1hPvhoipxtP2u9jcSlVsn6Q==",
-      "path": "propertychanged.fody/3.3.3",
-      "hashPath": "propertychanged.fody.3.3.3.nupkg.sha512"
-    },
-    "SharpZipLib/1.3.3": {
-      "type": "package",
-      "serviceable": true,
-      "sha512": "sha512-N8+hwhsKZm25tDJfWpBSW7EGhH/R7EMuiX+KJ4C4u+fCWVc1lJ5zg1u3S1RPPVYgTqhx/C3hxrqUpi6RwK5+Tg==",
-      "path": "sharpziplib/1.3.3",
-      "hashPath": "sharpziplib.1.3.3.nupkg.sha512"
-    },
-    "System.Collections.Immutable/5.0.0": {
-      "type": "package",
-      "serviceable": true,
-      "sha512": "sha512-FXkLXiK0sVVewcso0imKQoOxjoPAj42R8HtjjbSjVPAzwDfzoyoznWxgA3c38LDbN9SJux1xXoXYAhz98j7r2g==",
-      "path": "system.collections.immutable/5.0.0",
-      "hashPath": "system.collections.immutable.5.0.0.nupkg.sha512"
-    },
-    "System.CommandLine/2.0.0-beta1.21308.1": {
-      "type": "package",
-      "serviceable": true,
-      "sha512": "sha512-X8qLygjyktfmcNMNFekMkumyaTblJmkH3BBbKiQlk4FvJfp613gkMKrA0CNqLUT9tEfLcm3XMzAbsiYFwM8zbQ==",
-      "path": "system.commandline/2.0.0-beta1.21308.1",
-      "hashPath": "system.commandline.2.0.0-beta1.21308.1.nupkg.sha512"
-    },
-    "System.Drawing.Common/5.0.2": {
-      "type": "package",
-      "serviceable": true,
-      "sha512": "sha512-rvr/M1WPf24ljpvvrVd74+NdjRUJu1bBkspkZcnzSZnmAUQWSvanlQ0k/hVHk+cHufZbZfu7vOh/vYc0q5Uu/A==",
-      "path": "system.drawing.common/5.0.2",
-      "hashPath": "system.drawing.common.5.0.2.nupkg.sha512"
-    },
-    "System.Memory/4.5.4": {
-      "type": "package",
-      "serviceable": true,
-      "sha512": "sha512-1MbJTHS1lZ4bS4FmsJjnuGJOu88ZzTT2rLvrhW7Ygic+pC0NWA+3hgAen0HRdsocuQXCkUTdFn9yHJJhsijDXw==",
-      "path": "system.memory/4.5.4",
-      "hashPath": "system.memory.4.5.4.nupkg.sha512"
-    },
-    "System.Reflection.Metadata/5.0.0": {
-      "type": "package",
-      "serviceable": true,
-      "sha512": "sha512-5NecZgXktdGg34rh1OenY1rFNDCI8xSjFr+Z4OU4cU06AQHUdRnIIEeWENu3Wl4YowbzkymAIMvi3WyK9U53pQ==",
-      "path": "system.reflection.metadata/5.0.0",
-      "hashPath": "system.reflection.metadata.5.0.0.nupkg.sha512"
-    },
-    "System.Runtime.CompilerServices.Unsafe/5.0.0": {
-      "type": "package",
-      "serviceable": true,
-      "sha512": "sha512-ZD9TMpsmYJLrxbbmdvhwt9YEgG5WntEnZ/d1eH8JBX9LBp+Ju8BSBhUGbZMNVHHomWo2KVImJhTDl2hIgw/6MA==",
-      "path": "system.runtime.compilerservices.unsafe/5.0.0",
-      "hashPath": "system.runtime.compilerservices.unsafe.5.0.0.nupkg.sha512"
-    },
-    "System.Text.Encoding.CodePages/4.5.1": {
-      "type": "package",
-      "serviceable": true,
-      "sha512": "sha512-4J2JQXbftjPMppIHJ7IC+VXQ9XfEagN92vZZNoG12i+zReYlim5dMoXFC1Zzg7tsnKDM7JPo5bYfFK4Jheq44w==",
-      "path": "system.text.encoding.codepages/4.5.1",
-      "hashPath": "system.text.encoding.codepages.4.5.1.nupkg.sha512"
-    },
-    "System.Threading.Tasks.Extensions/4.5.4": {
-      "type": "package",
-      "serviceable": true,
-      "sha512": "sha512-zteT+G8xuGu6mS+mzDzYXbzS7rd3K6Fjb9RiZlYlJPam2/hU7JCBZBVEcywNuR+oZ1ncTvc/cq0faRr3P01OVg==",
-      "path": "system.threading.tasks.extensions/4.5.4",
-      "hashPath": "system.threading.tasks.extensions.4.5.4.nupkg.sha512"
-    },
-    "UndertaleModLib/1.0.0": {
-      "type": "project",
-      "serviceable": false,
-      "sha512": ""
-    }
-  }
-}
\ No newline at end of file
diff --git a/AM2RPortHelperLib/utils/UTMTCli/UndertaleModCli.dll b/AM2RPortHelperLib/utils/UTMTCli/UndertaleModCli.dll
deleted file mode 100644
index 54efbe5..0000000
Binary files a/AM2RPortHelperLib/utils/UTMTCli/UndertaleModCli.dll and /dev/null differ
diff --git a/AM2RPortHelperLib/utils/UTMTCli/UndertaleModCli.exe b/AM2RPortHelperLib/utils/UTMTCli/UndertaleModCli.exe
deleted file mode 100755
index 1721557..0000000
Binary files a/AM2RPortHelperLib/utils/UTMTCli/UndertaleModCli.exe and /dev/null differ
diff --git a/AM2RPortHelperLib/utils/UTMTCli/UndertaleModCli.runtimeconfig.json b/AM2RPortHelperLib/utils/UTMTCli/UndertaleModCli.runtimeconfig.json
deleted file mode 100644
index 896529d..0000000
--- a/AM2RPortHelperLib/utils/UTMTCli/UndertaleModCli.runtimeconfig.json
+++ /dev/null
@@ -1,13 +0,0 @@
-{
-  "runtimeOptions": {
-    "tfm": "net5.0",
-    "rollForward": "LatestMajor",
-    "framework": {
-      "name": "Microsoft.NETCore.App",
-      "version": "5.0.0"
-    },
-    "configProperties": {
-      "System.Reflection.Metadata.MetadataUpdater.IsSupported": false
-    }
-  }
-}
\ No newline at end of file
diff --git a/AM2RPortHelperLib/utils/UTMTCli/UndertaleModLib.dll b/AM2RPortHelperLib/utils/UTMTCli/UndertaleModLib.dll
deleted file mode 100644
index 76ddb8c..0000000
Binary files a/AM2RPortHelperLib/utils/UTMTCli/UndertaleModLib.dll and /dev/null differ
diff --git a/AM2RPortHelperLib/utils/UTMTCli/runtimes/unix/lib/netcoreapp3.0/System.Drawing.Common.dll b/AM2RPortHelperLib/utils/UTMTCli/runtimes/unix/lib/netcoreapp3.0/System.Drawing.Common.dll
deleted file mode 100755
index 8b95164..0000000
Binary files a/AM2RPortHelperLib/utils/UTMTCli/runtimes/unix/lib/netcoreapp3.0/System.Drawing.Common.dll and /dev/null differ
diff --git a/AM2RPortHelperLib/utils/UTMTCli/runtimes/win/lib/netcoreapp3.0/Microsoft.Win32.SystemEvents.dll b/AM2RPortHelperLib/utils/UTMTCli/runtimes/win/lib/netcoreapp3.0/Microsoft.Win32.SystemEvents.dll
deleted file mode 100755
index b5aa0c4..0000000
Binary files a/AM2RPortHelperLib/utils/UTMTCli/runtimes/win/lib/netcoreapp3.0/Microsoft.Win32.SystemEvents.dll and /dev/null differ
diff --git a/AM2RPortHelperLib/utils/UTMTCli/runtimes/win/lib/netcoreapp3.0/System.Drawing.Common.dll b/AM2RPortHelperLib/utils/UTMTCli/runtimes/win/lib/netcoreapp3.0/System.Drawing.Common.dll
deleted file mode 100755
index b80b430..0000000
Binary files a/AM2RPortHelperLib/utils/UTMTCli/runtimes/win/lib/netcoreapp3.0/System.Drawing.Common.dll and /dev/null differ
diff --git a/AM2RPortHelperLib/utils/bc16AndRemoveFunctions.csx b/AM2RPortHelperLib/utils/bc16AndRemoveFunctions.csx
deleted file mode 100644
index af98ebf..0000000
--- a/AM2RPortHelperLib/utils/bc16AndRemoveFunctions.csx
+++ /dev/null
@@ -1,185 +0,0 @@
-//Upgrade from bytecode 13 (experimental), 14, 15, 17 to 16 - by Grossley
-//13 and 14 do not work apparently due to variable issues that I don't know how to fix.
-//Need to test this, once I do then I can obsolete the other two scripts
-if (!((Data.GMS2_3 == false) && (Data.GMS2_3_1 == false) && (Data.GMS2_3_2 == false)))
-{
-    bool x = RunUMTScript(Path.Combine(ExePath, "HelperScripts", "ConvertFrom17to16_for_2.3.csx"));
-    if (x == false)
-        ScriptError("ConvertFrom17to16_for_2.3.csx failed!");
-    return;
-}
-
-EnsureDataLoaded();
-
-string currentBytecodeVersion = Data?.GeneralInfo.BytecodeVersion.ToString();
-string game_name = Data.GeneralInfo.Name.Content;
-
-bool is13 = false;
-
-if (!(Data.FORM.Chunks.ContainsKey("AGRP")))
-{
-    /*    is13 = true;
-        ScriptMessage("Bytecode 13 type game detected. The upgrading of this game is experimental.");
-        currentBytecodeVersion = "13";*/
-    ScriptError("Bytecode 13 is not supported.");
-    return;
-}
-if (Data?.GeneralInfo.BytecodeVersion == 14)
-{
-    ScriptError("Bytecode 14 is not supported.");
-    return;
-}
-
-if (!((Data.GMS2_3 == false) && (Data.GMS2_3_1 == false) && (Data.GMS2_3_2 == false)))
-{
-    ScriptError(game_name + "is GMS 2.3+ and is ineligible", "Ineligible");
-    return;
-}
-
-if (!(Data.FORM.Chunks.ContainsKey("AGRP")))
-{
-    is13 = true;
-    ScriptMessage("Bytecode 13 type game detected. The upgrading of this game is experimental.");
-    currentBytecodeVersion = "13";
-}
-
-
-if ((Data?.GeneralInfo.BytecodeVersion == 14) || (Data?.GeneralInfo.BytecodeVersion == 15) || (is13 == true))
-{
-    if (Data?.GeneralInfo.BytecodeVersion <= 14)
-    {
-        foreach (UndertaleCode code in Data.Code)
-        {
-            UndertaleCodeLocals locals = new UndertaleCodeLocals();
-            locals.Name = code.Name;
-
-            UndertaleCodeLocals.LocalVar argsLocal = new UndertaleCodeLocals.LocalVar();
-            argsLocal.Name = Data.Strings.MakeString("arguments");
-            argsLocal.Index = 0;
-
-            locals.Locals.Add(argsLocal);
-
-            code.LocalsCount = 1;
-            code.GenerateLocalVarDefinitions(code.FindReferencedLocalVars(), locals); // Dunno if we actually need this line, but it seems to work?
-            Data.CodeLocals.Add(locals);
-        }
-    }
-    if (!(Data.FORM.Chunks.ContainsKey("AGRP")))
-    {
-        Data.FORM.Chunks["AGRP"] = new UndertaleChunkAGRP();
-        var previous = -1;
-        var j = 0;
-        for (var i = -1; i < Data.Sounds.Count - 1; i++)
-        {
-            UndertaleSound sound = Data.Sounds[i + 1];
-            bool flagCompressed = sound.Flags.HasFlag(UndertaleSound.AudioEntryFlags.IsCompressed);
-            bool flagEmbedded = sound.Flags.HasFlag(UndertaleSound.AudioEntryFlags.IsEmbedded);
-            if (i == -1)
-            {
-                if (!flagCompressed && !flagEmbedded)
-                {
-                    sound.AudioID = -1;
-                }
-                else
-                {
-                    sound.AudioID = 0;
-                    previous = 0;
-                    j = 1;
-                }
-            }
-            else
-            {
-                if (!flagCompressed && !flagEmbedded)
-                    sound.AudioID = previous;
-                else
-                {
-                    sound.AudioID = j;
-                    previous = j;
-                    j++;
-                }
-            }
-        }
-        foreach (UndertaleSound sound in Data.Sounds)
-        {
-            if ((sound.AudioID >= 0) && (sound.AudioID < Data.EmbeddedAudio.Count))
-            {
-                sound.AudioFile = Data.EmbeddedAudio[sound.AudioID];
-            }
-            sound.GroupID = 0;
-        }
-        Data.GeneralInfo.Build = 1804;
-        var newProductID = new byte[] { 0xBA, 0x5E, 0xBA, 0x11, 0xBA, 0xDD, 0x06, 0x60, 0xBE, 0xEF, 0xED, 0xBA, 0x0B, 0xAB, 0xBA, 0xBE };
-        Data.FORM.EXTN.productIdData.Add(newProductID);
-        Data.Options.Constants.Clear();
-        Data.Options.Constants.Add(new UndertaleOptions.Constant() { Name = Data.Strings.MakeString("@@SleepMargin"), Value = Data.Strings.MakeString(1.ToString()) });
-        Data.Options.Constants.Add(new UndertaleOptions.Constant() { Name = Data.Strings.MakeString("@@DrawColour"), Value = Data.Strings.MakeString(0xFFFFFFFF.ToString()) });
-    }
-    Data.FORM.Chunks["LANG"] = new UndertaleChunkLANG();
-    Data.FORM.LANG.Object = new UndertaleLanguage();
-    Data.FORM.Chunks["GLOB"] = new UndertaleChunkGLOB();
-    String[] order = { "GEN8", "OPTN", "LANG", "EXTN", "SOND", "AGRP", "SPRT", "BGND", "PATH", "SCPT", "GLOB", "SHDR", "FONT", "TMLN", "OBJT", "ROOM", "DAFL", "TPAG", "CODE", "VARI", "FUNC", "STRG", "TXTR", "AUDO" };
-    Dictionary<string, UndertaleChunk> newChunks = new Dictionary<string, UndertaleChunk>();
-    foreach (String name in order)
-        newChunks[name] = Data.FORM.Chunks[name];
-    Data.FORM.Chunks = newChunks;
-    Data.GeneralInfo.BytecodeVersion = 16;
-    ScriptMessage("Upgraded from " + currentBytecodeVersion + " to 16 successfully. Save the game to apply the changes.");
-    ScriptMessage("Trying to remove functions \"immersion_play_effect\", \"immersion_stop\" and \"font_replace\"!");
-    
-    RemoveFunctions();
-}
-else if (Data?.GeneralInfo.BytecodeVersion == 17)
-{
-    if (!ScriptQuestion("Downgrade bytecode from 17 to 16?"))
-    {
-        ScriptMessage("Cancelled.");
-        return;
-    }
-    Data.GeneralInfo.BytecodeVersion = 16;
-    if (Data.FORM.Chunks.ContainsKey("TGIN"))
-        Data.FORM.Chunks.Remove("TGIN");
-    Data.GMS2_2_2_302 = false;
-    ScriptMessage("Downgraded from 17 to 16 successfully. Save the game to apply the changes.");
-}
-else if (Data?.GeneralInfo.BytecodeVersion == 16)
-{
-    ScriptMessage("This is already bytecode 16.");
-    ScriptMessage("Trying to remove functions \"immersion_play_effect\", \"immersion_stop\" and \"font_replace\"!");
-    
-    RemoveFunctions();
-    
-    return;
-}
-else
-{
-    string error = @"This game is not bytecode 13, 
-14, 15, 16, or 17, and is not made in GameMaker 2.3
-or greater. Please report this game to Grossley#2869
-on Discord and provide the name of the game, where
-you obtained it from, and additionally send the
-data.win file of the game." + @"
-
-Current status of game '" + game_name + @"':
-GMS 2.3 == " + Data.GMS2_3.ToString() + @"
-GMS 2.3.1 == " + Data.GMS2_3_1.ToString() + @"
-GMS 2.3.2 == " + Data.GMS2_3_2.ToString() + @"
-Bytecode == " + (Data?.GeneralInfo.BytecodeVersion).ToString();
-    ScriptError(error, "Unknown game error");
-    SetUMTConsoleText(error);
-    SetFinishedMessage(false);
-    return;
-}
-
-void RemoveFunctions()
-{
-    List<UndertaleFunction> funcsToRemove = new List<UndertaleFunction>();
-    
-    foreach (UndertaleFunction func in Data.Functions)
-    {   
-        if(func.ToString() == "immersion_play_effect" || func.ToString() == "immersion_stop" || func.ToString() == "font_replace")
-            funcsToRemove.Add(func);
-    }
-    
-    foreach(var func in funcsToRemove)
-        Data.Functions.Remove(func);    
-}