Sega Genesis ROMs
Letter: G
- G-LOC Air Battle
- Gadget Twins
- Gaiares
- Gain Ground
- Galaxian V2
- Galaxy Force II
- Gambler Jiko Chuushinha - Katayama Masayuki no Mahjong Doujou (Japan)
- Game Genie
- Gamtec Magicard
- Garfield - Caught in the Act
- Gargoyles
- Garou Densetsu - Shukumei no Tatakai (Japan)
- Garou Densetsu 2 - Aratanaru Tatakai (Japan)
- Gauntlet (Japan)
- Gauntlet IV
- GemFire
- Gemu no Kanzume O Tokuyou (Japan)
- General Chaos
- General Chaos Daikonsen (Japan)
- Generations Lost
- Genesis O.S. ROM
- Genghis Khan II - Clan of the Gray Wolf
- George Foreman's KO Boxing
- George Foreman's KO Boxing (Europe)
- Ghost Hunter
- Ghostbusters
- Ghouls 'N Ghosts
- Gley Lancer
- Global Gladiators (Europe)
- Gods
- Gods (Europe)
- Gods (Japan)
- Golden 20-in-1
- Golden Axe
- Golden Axe 2
- Golden Axe III (Japan)
- Goofy's Hysterical History Tour
- Gouketsuji Ichizoku (Japan)
- Granada
- GrandSlam - The Tennis Tournament '92 (Japan)
- Grandslam - The Tennis Tournament (Europe)
- Great Circus Mystery - Mickey to Minnie Magical Adventure 2 (Japan)
- Great Circus Mystery Starring Mickey & Minnie, The
- Great Waldo Search
- Greatest Heavyweights
- Greatest Heavyweights (Japan)
- Greendog - The Beached Surfer Dude!
- GRIND Stormer
- Growl
- Gunship (Europe)
- Gunstar Heroes
- Gunstar Heroes (Europe)
- Gunstar Heroes (Japan)
- Gynoug (Europe)
- Gynoug (Japan)