Earthworm Jim is the tits. Sure, it's awkward, clunky, stiff and unforgiving. But it's also gorgeous, varied, clever and funny. Bugs the crap out of me when Youtubers claim the Genesis got the superior version. The first level on the SNES had multiple layers of background with a sun that causes lens flare when it peeks out from behind mountains... Stunning. The Genesis version had a flat, dull, dithered background... blech. The OST was also far better on the SNES, with outstanding use of crystal clear samples that brought Tommy Tallarico's compositions to life, compared to the tinny, scratchy mess that was the Genesis's sound. Sure, the Genesis version had one more level, but that's not a deal breaker for me. Of course, the Sega CD version had even more levels as well as a soundtrack that surpassed even the SNES's in quality (redbook audio, after all). Still ugly as sin, though.
One of the finest tracks in video game history:
Earthworm Jim 2 was also excellent. Everything after that was shit, though. Come to think of it, I still have my Earthworm Jim action figures in their original packaging somewhere... good times.