ChimpoQ! is an original hack based on the engine of Sonic the Hedgehog for the Sega Mega Drive/Genesis. The game focuses on the original character Chimpo as he travels through one new zone with three levels. For the first level, Speed Slider from Knuckles Chaotix for the 32X has been imported.

Chip McCallahan in Sonic the Hedgehog is a Sonic 1 hack created by MainMemory. It replaces Sonic the Hedgehog with Chip McCallahan, the main character inChip'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 messages from Chip's Challenge, and the level will restart with no decrease in your life count.

Chuck Rock is a slapstick side-scrolling platform video game of the early-to-mid 1990s, which was initially created by Core Design in 1991 and was subsequently ported to a large number of home consoles of the time over the next few years. Chuck Rock was both developed and published by Core Design in 1991 for the Atari ST and Amiga computers, and a year after, in 1992, for the Commodore 64, and in 1994 for the Amiga CD32. The game was subsequently published by Krisalis Software for the Acorn Archimedes. Virgin Interactive published the game for the Sega Mega Drive/Genesis, Sega Master System, and the Sega Game Gear. Sony Imagesoft published the game for the Sega Mega-CD, Nintendo SNES, and Game Boy. In 1994, the game was among the most popular games for the Sega Mega Drive/Genesis. The character of Chuck Rock himself was an iconic early character for Core Design before the introduction of Lara Croft in the 1996 game Tomb Raider, and the character of Chuck Rock himself and his family even featured in some UK comic books of the 1990s. Chuck Rock spawned two other video game sequels.