d4s, the mighty hacker who worked on the translation of Star Fox 2 has created one of the first complete homebrew games for the Snes, N-Warp Daisakusen. The unique thing is that it is the first 8 player simultaneous game ever released on the snes. I haven't tried it out yet, because I don't have a controller with me, but it certainly looks interesting.

http://gra.dforce3000.de/