Double Dragon Genesis!
Ballistic Software's rare port of the original Double Dragon for the Sega Genesis (1992). A fairly accurate port of the arcade brawler that "started it all." It's actually somewhat faster and more challenging than the original, but with poor sound effects (if only they'd used a 24 meg cartridge like Streets of Rage 3!) and fewer colors. I'm not the greatest player ever (you can give yourself up to 36 lives if you need a confidence boost, 18 each for a two player game), and I've only owned the cartridge for a short time (being more used to the arcade version), but it's worth your while if you're a coin-op brawler fan like me!
Special thanks to users like macromi for inspiring me!