If the upcoming Super Smash Bros. for the Nintendo Wii U and 3DS has you jonesing for a similar arena fighter featuring Sega's classic characters, you'll want to check out Sega Master System Brawl (direct download link), a recently updated homebrew release for the Sega Genesis and Mega Drive.
Kids who grew up on the Sega Master System (our own Alexander Sliwinski among them) will recognize several featured cast members, including Alex Kidd, Wonder Boy in Monster Land star Tom-Tom, and Shinobi's Joe Musashi. The latest version's roster also includes characters and backdrops from a selection of lesser-known Master System greats like Kung-Fu Kid and the Castlevania-inspired Vampire: Master of Darkness.
Creator "Bonaf" tells Sega Nerds that future updates will add playable characters like JJ from Zillion, Dynamite Dux's Bean, and Sonic the Hedgehog himself. Sega Master System Brawl is available as a downloadable ROM file, and is playable via emulation and on original Sega Genesis hardware using a flash cartridge.
Sega Master System 1st-gen