sounds:
 258: musMonsterAppear
 373: sndCrystalMelt
 374: sndEggCrush
 375: sndHornoadDie
 376: sndHornoadScream
 377: sndHornoadLand
 378: sndHornoadSkeletonCrumble
 379: sndXInfect
sprites:
1504: sSolidBlank
1506: sHornoadSkeleton
1507: sMonsterEggHatched