I played the SNES version back in the day, and that version feels almost like a different game. The powerups have differing functions, the graphics are different, the style of a lot of things is different, even mechanics are different. These I remember clearly. I also remember the controls to be a bit snappier and smarter, but that maybe wrong and I can't compare the verison right now. I mean, I am kinda disappointed to be honest. I expected something different.
SNES version may as well be a completely different game considering how much is different in that version,
like i said before the PC version is based off the Sega Mega Drive version which only came out in all European countries and Brazil (European version is called "Donald in Maui Mallard" while in every other country on earth it's called Maui Mallard in Cold Shadow and the Disney Classic Video Games 2 version is called Donald Duck in Cold Shadow, beats me why this is the case)