Stella the Cat is a fan-made ROM of the game Sonic the Hedgehog for the Sega Mega Drive/Genesis, featuring a fan-made character called Stella the Cat (aka Stella Hoshine). She replaces the main character, Sonic.The author of the hack had planned to alter the levels further with palette recoloring and level redesign but instead decided against working on the hack further.

Street Racer is a racing video game published by Ubisoft for various systems. It was released for the Super Nintendo Entertainment System in 1994, Mega Drive/Genesis in 1995, PlayStation, Sega Saturn and Game Boy in 1996 and PC and Amiga in 1997. Inspired by Mario Kart, the go-kart themed game combined racing with comedy and beat 'em up influenced violence. The game was a success on the SNES and Mega Drive and received mixed reviews across platforms.

Syndicate Wars, or SW for short, is a groundbreaking hack developed by Red Crimson with help from gsaurus and Daors. It allows you to play with any character of the game, including bosses and thugs, PLUS Adam Hunter (Original Sprites by Daors). That's 23 playable characters! No enemy characters are modified, they play as they are in the original. All characters are selectable on the select screen.Syndicate Wars is designed to be fully moddable with the Pancake2 Editor (v1.6 and above, see further below).

Super Monaco GP (スーパーモナコGP) is a Formula One racing simulation video game released by Sega, originally as a Sega X Board arcade game in 1989, followed by ports for multiple video game consoles and home computers in the early 1990s. It is the sequel to the 1979 arcade game Monaco GP.The arcade game consists mostly of one race: the Grand Prix of Monaco (though represented by a totally different track, albeit with the same features of the real-life Circuit de Monaco). The player simply chooses a transmission type, qualifies, and race. The player must qualify in under 45 seconds in the shortened track in order to actually race. If he fails, the game ends (though, in the home versions, even if the player fails to qualify, he still starts off the race at the last position). When in the race itself, there is also a position limit, which starts off on 20th (15th in the home versions) and decreases as the player bypasses checkpoints along the track, ultimately stopping on 3rd. If the player falls behind the indicated position and does not manage to recover fast enough, a game over happens.The game was one of the first games to include a rear-view mirror,along with Winning Run. The Sega Genesis/Mega Drive version of Super Monaco GP adds a World Championship mode. In the World Championship mode, the goal is to win a season of races, and then go on to defend the title. The circuits are modeled on the ones used in the 1989 Formula One season, with background scenery similar to the real-world circuit venues, though without the wealth of details the Arcade version had. This Mega Drive/Genesis version was also released in arcades for the Sega Mega-Tech system board in 1990.

Super Sonic in Sonic 3D is a hack of Sonic 3D: Flickies' Island made by Sik. This hack allows the player to turn into Super Sonic in said game after collecting all sevenChaos Emeralds, mimicking its prequels Sonic 2, Sonic 3 and Sonic & Knuckles. The rules are borrowed from the latter two games, so the player must double jump to transform and also must not have a shield in that moment, besides the basic requirements (having all emeralds and 50 rings).All of Super Sonic's behaviour is implemented: a custom palette, a transformation pose with a fading palette, invincibility (with stars), speed shoes and a music change upon transformation. Rings drain while transformed as well. Super Sonic can still be killed by getting crushed by some falling platforms, however, so he isn't completely immune to death.This hack is based off Sonic 3D: No Flickies, and as such it shares the same gameplay rules.

Super Sonic in Sonic the Hedgehog is hack by Puto which adds the ability to turn into Super Sonic when obtaining all the Chaos Emeralds or using a button code. Although other people have incorporated Super Sonic into their Sonic hacks, this hack's main purpose is to add the ability to transform into Super Sonic. Super Sonic's abilities from Sonic 3 & Knuckles were added in addition to using the Super Sonic sprites of Sonic the Hedgehog 2.