| Sonic the Hedgehog Genesis (Genesis) | Xenowhirl | Sonic the Hedgehog | Action | GEN | G, GP, O | Improvement | Release 2 | 06 Dec 2006 |
| Sonic ERaZor | Selbi | Sonic the Hedgehog | Action | GEN | G, S, L, T, GP | Complete | 4th Public | 24 Jul 2012 |
| Stella the Cat | FeliciaVal | Sonic the Hedgehog | Action | GEN | G, L, T, GP | Improvement | 1 | 20 Jan 2011 |
| Sonic 1 Alt | Ell678 | Sonic the Hedgehog | Action | GEN | L, GP, O | Complete | Final Vers | 30 Jul 2010 |
| Sonic Zeta Overdrive | Mikel | Sonic the Hedgehog | Action | GEN | G, S, L, T, GP | Complete | 2009 Hacki | 06 Jul 2010 |
| Sonic Level Fix | Hybrid | Sonic the Hedgehog (NES) | Action | NES | L | Bug Fix | 1.0 | 08 Mar 2008 |
| Sonic 2 Delta | Esrael | Sonic the Hedgehog 2 | Action > Platformer | GEN | G, S, L, T | Improvement | 0.24a | 07 Jun 2012 |
| Sonic 2 Early Prototype Green Hill Zone Fix | rika_chou | Sonic the Hedgehog 2 | Action > Platformer | GEN | G, L | Improvement | 1.2 | 07 Dec 2006 |
| Sonic 2 Early Prototype Name Fix | hiro1112 | Sonic the Hedgehog 2 | Action > Platformer | GEN | T | Improvement | 1.0 | 26 Apr 2008 |
| Sonic the Hedgehog 2 XL | Captain Bozo | Sonic the Hedgehog 2 | Action > Platformer | GEN | G, GP | Spoof | 1.0 | 12 Jul 2010 |
| Sonic 2: Sweet Relief | Ambil | Sonic the Hedgehog 2 | Action > Platformer | SMS | L, O | Improvement | 1.1 | 14 Sep 2011 |
| Strike Dash in Sonic 2 | Ravenfreak | Sonic the Hedgehog 2 | Action > Platformer | SMS | GP | Improvement | version 2 | 07 Apr 2012 |
| Sonic 2 Time Attack | redhotsonic | Sonic the Hedgehog 2 | Action > Platformer | GEN | O | Improvement | 1.0 | 24 Nov 2012 |
| Amy Rose in Sonic the Hedgehog 2 | E-122-Psi | Sonic the Hedgehog 2 | Action > Platformer | GEN | G, GP | Improvement | 1.5 | 15 Jan 2012 |
| Sonic the Hedgehog Classic Heroes | flamewing | Sonic the Hedgehog 2 | Action > Platformer | GEN | L, GP | Improvement | 0.07f6 | 23 Sep 2012 |
| Homing Attack and Jumpdash in Sonic 2 | Hitaxas | Sonic the Hedgehog 2 | Action > Platformer | GEN | GP | Improvement | 1.0 | 29 Jan 2009 |
| Fly with Tails in Sonic the Hedgehog 2 | JoseTB | Sonic the Hedgehog 2 | Action > Platformer | GEN | GP | Improvement | 3 | 12 Sep 2004 |
| Sonic 2 Dimps Edition | SOTI | Sonic the Hedgehog 2 | Action > Platformer | GEN | G, S, L, GP | Spoof | v1.5 | 30 Oct 2010 |
| Sonic 2: Sonic 3 Edition | Alriightyman | Sonic the Hedgehog 2 | Action > Platformer | GEN | G, L, GP | Improvement | 2 | 03 Sep 2009 |
| Robotnik's Revenge | ColinC10 | Sonic the Hedgehog 2 | Action > Platformer | GEN | G, S, L | Improvement | 1.0 | 07 Sep 2008 |
