This is super nitpicky suggestion, but would it be possible to change the palette of the Amiga sprite to fit the warm grey of the DOS game? The cold, blue-grey and very bright red of the original look kinda jarring / out of place among the rest of the tiles to me. Everything else has this soft/warm/earthy palette. You can immediately see the difference when you compare the sprites on the top of the page (DOS is more reddish, Amiga more blueish) - maybe this can be another option in a future update (like the old 16 Bit Turtles games did it) to tie the visuals perfectly together.
Fantastic release tho! Thanks for your hard work.