Mega Man: The Wily Wars, released in Japan as Rockman Mega World (ロックマン メガワールド?) is a video game compilation by Capcom for the Sega Mega Drive. The game features remakes of the first three Mega Man games (Mega Man, Mega Man 2, and Mega Man 3) that were originally released for the Nintendo Entertainment System, and is a pseudo-sequel of sorts for these titles. The Wily Wars was released in cartridge format in Japan and PAL regions. The North American Genesis version was available exclusively via the Sega Channel service.

Sonic the Hedgehog Megamix (commonly shortened to Sonic Megamix) is a work-in-progress multiperson disassembly modification of the original Sonic the Hedgehog videogame for the Sega Mega Drive / Genesis, developed by Team Megamix and more recently moved to the Sega Mega-CD. The game features the ability to play as one of five different characters: Sonic the Hedgehog, Mighty the Armadillo, Shadow the Hedgehog, Miles "Tails" Prower, and Knuckles the Echidna. It is an extensive reworking of the original game, featuring new art, music, abilities, layouts, and other things.