| Pac-Man - NES Improvement | JY | Pac-Man | Action | NES | G | Improvement | 2.0 | 20 Oct 2020 |
| Rockman 2nd | k-game | Mega Man 2 | Action > Platformer | NES | G, L | Complete | 1.0 | 07 Nov 2005 |
| Shinobi Masked | K.K. Drunkinski | Shinobi | Action > Platformer | NES | G | Improvement | 1.0 | 30 Dec 2013 |
| Castlevania - Sonia Belmont Edition | K.K. Drunkinski | Castlevania | Action > Platformer | NES | G | Improvement | 1.0 | 10 Oct 2016 |
| Ninja Jajamaru Bomber | K.K. Drunkinski | Bomberman | Action | NES | G, T | Improvement | 1.0 | 11 Nov 2016 |
| Gargoyle's Quest II - Demonic Restoration | K.K. Drunkinski | Gargoyle's Quest II | Role Playing > Action RPG | NES | T | Improvement | 1.0 | 10 Oct 2017 |
| Kung-Fu Heroes - Ninja Boy Edition | K.K. Drunkinski | Kung-Fu Heroes | Action > Beat 'Em Up | NES | G | Improvement | 1.0 | 28 Jul 2020 |
| Ultimate Mortal Kombat Trilogy | KABAL_MK | Ultimate Mortal Kombat 3 | Action > Fighting | GEN | G, S, L, T, GP, O | Complete | 23 (5125) | 30 Mar 2014 |
| Pac-Man Xtreme | KaBooM! | Ms. Pac-Man (Namco) | Action | NES | G, S, L, T, GP | Complete | 1-0-000-00 | 17 Sep 2016 |
| Quadruple Dragons | Kabucho | Final Fantasy | Role Playing | NES | G, L, T, GP | Complete | 1.0 | 31 Aug 2001 |
| Luigi in Sonic 1 | Kaching | Sonic the Hedgehog | Action > Platformer | GEN | G, GP | Improvement | Rev01 | 05 Apr 2020 |
| Love and Star | Kaeri | Super Mario Bros. | Action > Platformer | NES | G, L, T, GP | Complete | 1.0 | 01 Jan 2007 |
| Super Mario Bros. - Alcatraz | Kaeri | Super Mario Bros. | Action > Platformer | NES | G, L, T | Complete | 1.0 | 01 Jan 2000 |
| Super Mario Bros. - Square Root 5 | Kaeri | Super Mario Bros. | Action > Platformer | NES | G, L, T | Complete | 1.0 | 01 Jan 2000 |
| Stomp on Brothers Head | Kaeri | Super Mario Bros. | Action > Platformer | NES | G, S, L, GP | Complete | 1.0 | 01 Jan 2008 |
| Yoshiharu Country's Adventure Final | Kahima System Inc. | Super Mario World | Action > Platformer | SNES | G, S, L, T | Complete | 1.0 | 01 Jan 2010 |
| Double Dragon 2 - Forward Kick + Controller Fix | Kaiser_Gun | Double Dragon II: The Revenge | Action | NES | GP | Improvement | 1.0 | 10 Sep 2020 |
| Chrono Trigger Coliseum | Kajar Laboratories | Chrono Trigger | Role Playing | SNES | L | Improvement | 2.0 | 02 Jan 2006 |
| Chrono Trigger: Prophet's Guile | Kajar Laboratories | Chrono Trigger | Role Playing | SNES | G, S, L, T, GP | Complete | 1.00 | 25 Dec 2007 |
| 6-Letter Name Patch | Kajar Laboratories | Chrono Trigger | Role Playing | SNES | T | Improvement | 1.01 | 13 Oct 2008 |
