Flicky Turncoat DX is a hack of Sonic 1 by GT Koopa. It has a top down art style similar to the 8-bit game Sonic Blast. The main idea of the game that, like the namesake, the small animals that Sonic used to save now hurt you. Luckily for the player, a shield now protects from the small animals, with the added ability of saving up said shields. Another quirk of the hack is that spikes kill you instantly, ala Megaman. Finally, there is an emerald monitor hidden within each act, requiring 50 rings to activate. The first zone, Pocky Field, is currently available to play.

Gain Ground is a 1988 action-strategy arcade game later ported to the Sega Master System, Mega Drive/Genesis, and PC Engine (TurboGrafx-16). In 2004, it was re-released in Radica Games' TVPlay Legends Vol. II TV Games compilation. It was remade in the PlayStation 2 title Sega Ages 2500 Series Vol. 9: Gain Ground, which was released only in Japan. The Mega Drive/Genesis version was made available on the European and Australian Virtual Console on February 2, 2007, and was made available in North America on February 5, 2007. The game has also appeared on Sonic's Ultimate Genesis Collection for Xbox 360 and PlayStation 3. The game has also appeared on the Sega Genesis Collection on the PlayStation 2 and the PSP. On June 1, 2010 the game became available on Steam as part of the 'Sega Mega Drive Classics Pack'.

Gauntlet is a fantasy-themed hack and slash 1985 arcade game by Atari Games.[1] It is noted as being one of the first multi-player dungeon crawl arcade games.