| Aaahh!!! Real Monsters Improvement Mod | Aszaxa | Aaahh!!! Real Monsters | Action > Platformer | GEN | GP | Improvement | 1.0 | 13 Aug 2022 |
| Addams Family Values - Afterlife Edition MD | BillyTime! Games | Addams Family Values | Action Adventure | GEN | T, GP | Improvement | 1.0 | 27 Oct 2020 |
| Alcon Special | DUSTINODELLOFFICIAL | Slap Fight MD | Action > Shooter | GEN | G, T, O | Improvement | 1.0 | 20 Oct 2018 |
| Alien 3 - Kinoppi version | Vikfield | Alien 3 | Action > Platformer | GEN | T, GP | Improvement | 1.0 | 04 Nov 2018 |
| Alien 3 - Survivor mod | Vikfield | Alien 3 | Action > Platformer | GEN | T, GP | Improvement | 1.0 | 26 Aug 2018 |
| Alien 3 SRAM | BillyTime! Games | Alien 3 | Action > Platformer | GEN | O | Improvement | 1.1 | 27 Apr 2021 |
| Alien Soldier (Europe) 60 Hz Region-Free | Adam Catalyst | Alien Soldier | Action | GEN | O | Improvement | 2.0 | 23 Dec 2022 |
| Alien Soldier Ammo Regen | BillyTime! Games | Alien Soldier | Action | GEN | GP | Improvement | 1.0 | 26 Jun 2022 |
| Altered Beast - Alternate Style | Pyron | Altered Beast | Action > Beat 'Em Up | GEN | G | Improvement | 2.0 | 15 Nov 2015 |
| Altered Beast with Arcade Voice Samples | Linkuei | Altered Beast | Action > Beat 'Em Up | GEN | S | Improvement | 1.0 | 21 Jan 2016 |
| Amy Rose in Sonic the Hedgehog | E-122-Psi | Sonic the Hedgehog | Action > Platformer | GEN | G, GP | Improvement | 2.1 | 01 Apr 2015 |
| Amy Rose in Sonic the Hedgehog 2 | E-122-Psi | Sonic the Hedgehog 2 | Action > Platformer | GEN | G, GP | Improvement | 1.6 | 12 Apr 2015 |
| An Apeeling Sonic Hack | VAdaPEGA | Sonic the Hedgehog | Action > Platformer | GEN | G, S, L, T, GP, O | Complete | 1.0 | 24 Sep 2015 |
| Animaniacs - Ground Action + Switch Speed Increase | LiquidMarble | Animaniacs | Action > Platformer | GEN | GP | Improvement | 1.1 | 17 Nov 2022 |
| Animaniacs - Sound Test Restored | DUSTINODELLOFFICIAL | Animaniacs | Action > Platformer | GEN | T, O | Improvement | 1.0 | 15 May 2018 |
| Antigrinding | Ilya Indigo | Shining in the Darkness | Role Playing | GEN | GP, O | Improvement | 1.0 | 08 Jan 2020 |
| Art of Fighting - Enhanced Colors | Pyron | Art of Fighting | Action > Fighting | GEN | G | Improvement | 1.0 | 08 May 2015 |
| Assault Suit Leynos - Reloaded | Vikfield | Target Earth | Action > Shooter | GEN | GP | Improvement | 1.0 | 09 Nov 2018 |
| ATP Tour Championship Tennis 2022 | TA_Marcos_Translations | ATP Tour Championship Tennis | Sports | GEN | G, S, T, O | Improvement | 1.0 | 01 Jan 2022 |
| Ayrton Senna's Super Monaco GP II '91 Season | CorukoBardo | Ayrton Senna's Super Monaco GP II | Racing | GEN | T | Improvement | 1.0 | 14 Oct 2011 |
