The Mega Drive version was made by Shiny the people that made Earth Worm Jim they play allot alike with very nice sound, graphics and gameplay.
its not a bad game really lots of jumping chopping and think you can throw stuff too! and bonus stages you get to be the monkey wow!
The SNES version like all Disney games on Nintendo systems was made by Capcom and is very diffrent dont think ive played it tho so cant say what thats like