| Gundemonium | No Alternate Title | Platine Dispositif | 2003 | Action > Shooter | PC | N | N | Y | N |
| Gundemonium: Recollection | No Alternate Title | Platine Dispositif | 2007 | Action > Shooter | PC | N | N | Y | N |
| Gunhed: Aratanaru Tatakai | Gunhed: The New Battle | Varie | 13 April 1990 | Strategy | NES | N | N | Y | N |
| Gunstar Heroes | No Alternate Title | Sega | 09 September 1993 | Action > Shooter | GEN | Y | N | Y | N |
| Gunstar Super Heroes | Gunstar Future Heroes | Sega | 06 October 2005 | Action > Shooter | GBA | N | N | Y | N |
| Guru Logic Champ | No Alternate Title | Compile | 29 November 2001 | Puzzle | GBA | N | Y | N | N |
| Gurumin: A Monstrous Adventure | Gurumin | Nihon Falcom | 27 June 2007 | Role Playing > Action RPG | PSP | N | N | N | Y |
| Gyakuten Kenji 2 | Ace Attorney Investigations: Miles Edgeworth: Prosecutor's Path | Capcom | 03 February 2011 | Visual Novel | NDS | Y | Y | Y | N |
| Gyakuten Saiban | Phoenix Wright: Ace Attorney | Capcom | 12 October 2001 | Adventure | GBA | N | N | Y | N |
| Gyakuten Saiban 3 | Phoenix Wright: Ace Attorney – Trials and Tribulations | Capcom | 23 January 2004 | Visual Novel | GBA | N | N | Y | N |
| Gyakuten Saiban II | No Alternate Title | Capcom | 18 October 2002 | Adventure | GBA | N | N | Y | N |
| Gyrodine | No Alternate Title | Taito | 1986 | Action > Shooter | MSX | N | N | Y | N |
| Gyrodine | No Alternate Title | Taito | 1986 | Action > Shooter | NES | N | N | Y | N |
| Gyromite | Robot Gyro | Nintendo | 13 August 1985 | Puzzle | NES | N | N | Y | Y |
| Gyruss | No Alternate Title | Konami | 18 November 1988 | Action > Shooter | FDS | N | N | Y | Y |
| H.E.R.O. | No Alternate Title | Sega | 1985 | Action | SG1K | N | N | Y | N |
| Hagane no Renkinjutsushi - Omoide no Sonata | Fullmetal Alchemist: Sonata of Memories | Bandai | 22 July 2004 | Role Playing | GBA | N | N | Y | N |
| Hagane no Renkinjutsushi: Meisou no Rinbukyoku | Fullmetal Alchemist: Stray Rondo | Bandai | 26 March 2004 | Role Playing | GBA | N | N | Y | N |
| Hajime no Ippo: The Fighting | The First Step: The Fighting | ESP Software | 12 December 2002 | Action > Fighting | GBA | N | N | Y | N |
| Hal Wrestling | Pro Wrestling | HAL America | 14 September 1990 | Sports | GB | N | N | N | Y |
