So I've been getting into homebrews lately, and I'm curious what great homebrews have been made that I may have missed. And I'm not talking cheap hacks, but completely new games or quality, unlicensed sequels. Think Battle Kid or Zelda: Outlands for the NES as examples. Any system will do, but I'm mainly interested in NES, SNES, and Genesis. So, have any of you played any killer homebrews worth mentioning?