Chip McCallahan in Sonic the Hedgehog 2 is a Sonic 2 hack created by MainMemory. It replaces Sonic the Hedgehog and Tails with Chip McCallahan, the main character in Chip's Challenge. Chip can't run fast, roll or jump high, and rings do not protect him from damage. When you die, you will get one of the death messagesfrom Chip's Challenge, and the level will restart with no decrease in your life count.

Coach K College Basketball was the first college basketball video game developed by EA Sports spun off from their NBA Live engine. Originally released in 1995, Coach K College Basketball was the first college basketball game created for Sega Genesis. Endorsed by Duke head basketball coach Mike Krzyzewski, the game featured 32 officially licensed teams in addition to eight classic teams.

Contra: Hard Corps, released in Japan as Contra: The Hard Corps (魂斗羅 ザ・ハードコア?)[1] and in Europe and Australia as Probotector, is a side-scrolling run and gun-style shoot-'em-up video game released by Konami for the Sega Mega Drive/Genesis in 1994. It is part of the Contra series and serves as a follow-up to Contra III: The Alien Wars. The plot takes place several years after the events of that game. Contra: Hard Corps follows the same gameplay as its predecessors. New features include branching story paths and multiple endings.

Contra: Hard Corps is a side-scrolling run and gun-style shoot-'em-up video game released by Konami for the Sega Genesis in North America and South Korea in 1994. It was also released for the Mega Drive as Contra: The Hard Corps (魂斗羅 ザ・ハードコア?)[1] in Japan and as Probotector in Europe and Australia . It was the first game in the Contra series released for a Sega platform and serves as a departure from preceding games in the series in many ways.This hack will give you 99 lives to be able to finish the game.