Sega Mega Drive/Genesis — Games (G)

Gadget Twins — NTSC-U

Gaiares — NTSC-J, NTSC-U

Gain Ground — NTSC-J

Galahad — NTSC-J, NTSC-U, PAL

Galaxy Force II — NTSC-J, NTSC-U

Game no Kanzume Otokuyou — NTSC-J

Garfield: Caught in the Act — NTSC-U, PAL

Garfield: The Lost Levels — NTSC-U

Gargoyles — NTSC-U

Gauntlet Arcade Version — NTSC-J, NTSC-U, PAL

Gauntlet IV — NTSC-J, NTSC-U, PAL

Gemfire — NTSC-J, NTSC-U

General Chaos — NTSC-J, NTSC-U, PAL

Generations Lost — NTSC-U

Genghis Khan II: Clan of the Gray Wolf — NTSC-J, NTSC-U

George Foreman's KO Boxing — NTSC-U, PAL

G Fighter — NTSC-U

Ghostbusters — NTSC-U

Ghouls 'n Ghosts — NTSC-J, NTSC-U, PAL

Global Gladiators — NTSC-U

G-LOC: Air Battle — NTSC-J, NTSC-U, PAL

Gluf — NTSC-J, NTSC-U, PAL

Gnome Runner — NTSC-J, NTSC-U, PAL

Go Bonkers! — NTSC-U

Gods — NTSC-J, NTSC-U, PAL

Golden Axe — NTSC-J, NTSC-U, PAL

Golden Axe II — NTSC-J, NTSC-U, PAL

Golden Axe III — NTSC-J, NTSC-U

Goldrush — NTSC-J, NTSC-U, PAL

Go Net — NTSC-J

Goofy's Hysterical History Tour — NTSC-J, NTSC-U, PAL

Granada — NTSC-J, NTSC-U, PAL

Gravibots — NTSC-J, NTSC-U, PAL

Greatest Heavyweights — NTSC-J, NTSC-U, PAL

Greendog: The Beached Surfer Dude! — NTSC-J, NTSC-U, PAL

Grind Stormer — NTSC-J, NTSC-U

Growl — NTSC-J, NTSC-U

Guerra dos Monstros — NTSC-U

Guitar Idol — NTSC-U

Gunship — PAL

Gunstar Heroes — NTSC-J, NTSC-U, PAL