The S Factor: Sonia and Silver is an in-progress multi-level hack created by Aquaslash of Sonic the Hedgehog on the Sega Mega Drive/Genesis. The game allows players to choose between two characters, Sonia, and Silver, and offers several moves attributed to those characters.

The Simpsons: Bart's Nightmare is a 1992 video game developed by American company Sculptured Software based on the television show The Simpsons. It was released to the Sega Mega Drive/Genesis and the Super Nintendo Entertainment System.

Virtual Bart is one of the many The Simpsons licensed games. It was released for the Super NES and Mega Drive/Genesis in 1994 by Acclaim. The official guide to the game (Virtual Bart: Official Game Secrets) was written by Steve Schwartz (Prima Publishing, 1995). A Virtual Boy port of this game was planned, however it was never released because of the failure of the console.

Tommy Lasorda Baseball is a baseball game released for the Sega Mega-Tech arcade system and later as one of the six launch titles for the Sega Mega Drive/Genesis console in the North American region.

Ultimate Soccer is a 1993 soccer video game by Rage Software released for the Mega Drive/Genesis by request of Sega which even allowed their mascot, Sonic, to be featured in the game menus. Focused on national teams (with a total of 64, all with fake names and individual team values), it had one of the highest option counts for 16-bit football games: up to 18 different settings can be changed, including ball weight, weather, surface, tightness of ball control, passback rule and perhaps the most remembered of all, the ability to play 6-on-6 indoor football. Several game modes are available, including friendlies, penalty shootout, Ultimate League, Ultimate Cup (group phase and knockout stage) and Knockout. However, the game lacks both passwords and battery save, and all competitions must be completed in one sitting. Up to eight players can play if two 4-player adapters are used. Ultimate Soccer is played in a field of vision similar to the Madden NFL games in the console, a second-row view behind the players' shoulders that can also be tilted to show more field depth or more detail closer to the bottom of the screen. Player sprites, while small, are well animated and with small details such as dirt or water splashing from the players' feet (which would become one of the trademark effects in Sega's own Worldwide Soccer)

In short, Eggman wants to destroy Sonic, and, well, Sonic just won't have that, and it's up to you to stop him.Currently, I have GHZ and the first two acts of MZ finished in time for the contest. I kinda rushed it to the finish so you should expect some anomalies here and there.This hack made by Bagumba

Vector the Crocodile in Sonic the Hedgehog (aka Vector in Sonic 1) is a hack of Sonic 1 by E-122-Psi, starring Vector the Crocodile as the playable character instead of the blue hedgehog. The game is modified to use Vector's sprites (edited from Knuckles Chaotix) in place of Sonic's, along with several modifications to the player's stats and abilities.The game was modified by Sonic Retro member E-122-Psi, with additional programming and coding by other members including MarkeyJester and flamewing.