| Adventures of Batman & Robin (FastROM) | MaxwelOlinda | The Adventures of Batman & Robin | Action | SNES | O | Improvement | 1.0 | 17 Jan 2022 |
| Adventures of Lolo - MMC1 to MMC3 | infidelity | Adventures of Lolo | Puzzle | NES | O | Improvement | 1.0 | 26 Nov 2013 |
| Adventures of lolo 1x3 | Jp32 | Adventures of Lolo | Puzzle | NES | G, T | Improvement | 1.5 | 26 Feb 2014 |
| Adventures of Lolo Remix | Jp32 | Adventures of Lolo 2 | Puzzle | NES | L | Complete | 2.0 | 11 Jul 2007 |
| Adventures of Lolo: Mystical Forest | DragonEye Studios | Adventures of Lolo | Puzzle | NES | G, S, L, T | Complete | 0.4 | 22 Jul 2002 |
| Adventures of Mana Title Screen For Final Fantasy Adventure | Da_GPer | Final Fantasy Adventure | Role Playing > Action RPG | GB | G | Improvement | 1.0 | 05 Jul 2019 |
| Aeron's Golden Cookie Quest | Anorakun | Super Mario World | Action > Platformer | SNES | G, S, L, T, GP, O | Complete | 3.2.7.1 | 21 Feb 2023 |
| AFF Challenge | L.Soft Hacks | Mega Man | Action > Platformer | NES | G, S, L, T, GP | Complete | 1.5 | 12 Jun 2007 |
| After Lolo 2 | Googie | Banana | Puzzle | NES | G, T | Improvement | 1.0 | 19 Oct 2008 |
| After World 8 | insectduel | Super Mario Bros. | Action > Platformer | NES | G, L, T | Complete | 1.0 | 11 Feb 2006 |
| Air Contra | Digital Warrior | S.C.A.T.: Special Cybernetic Attack Team | Action > Shooter | NES | G | Improvement | 2.0 | 17 Apr 2017 |
| Air Fortress 2 | S. K. Dumbbus | Choujikuu Yousai: Macross | Action > Shooter | NES | G, T, GP, O | Complete | 1.0 | 17 Apr 2017 |
| Air Umbrella | Inventor | Balloon Fight | Action | NES | G | Improvement | 1.0 | 01 Jan 2001 |
| Airball (later beta) Direction Fix | elbobelo | Airball | Puzzle | NES | GP | Improvement | 1.0 | 05 Dec 2011 |
| Airbourne Hound | forgotusername | Balloon Fight | Action | NES | G, S, GP | Complete | 1.0 | 01 Apr 2022 |
| AirRace Championship Alternate Edition | AreBeAre | AirRace Championship | Racing | PSX | G, L | Improvement | 1.0 | 03 Jun 2017 |
| AJ Blaster Master | AlanJacobs | Blaster Master | Action Adventure | NES | G, L | Complete | 1.1 | 12 Feb 2014 |
| Akira Recruitable on New Game | A Friendly Irin | Shin Megami Tensei if... | Role Playing | SNES | GP | Improvement | 1.0 | 06 Dec 2022 |
| Akumajō Densetsu - PAL Fix | Bregalad | Castlevania III: Dracula’s Curse | Action > Platformer | NES | O | Bug Fix | 1.0 | 11 Mar 2010 |
| Akumajo Dracula - Vampire Killer - Improvements | FRS | Vampire Killer | Action > Platformer | MSX | O | Improvement | 1.0 | 26 Jul 2011 |
