| Chicken Berserk | noisecross | Final Fantasy V | Role Playing | SNES | O | Bug Fix | 1.0 | 22 Mar 2018 |
| Cheep Cheep Challenge | zacmario | Super Mario World | Action > Platformer | SNES | G, S, L, T, GP, O | Complete | 2.1 | 05 Feb 2016 |
| Change Shadow's name to Clyde Arrowny in end credit sequence | TheNPCnextDoor | Final Fantasy III | Role Playing | SNES | T | Improvement | 1.1 | 29 Dec 2017 |
| Change Form - Pygmy-Moogle | hmsong | Secret of Mana | Role Playing > Action RPG | SNES | GP | Improvement | 0.1 | 07 Apr 2020 |
| Chance Offering | Leet Sketcher | Final Fantasy III | Role Playing | SNES | GP | Bug Fix | 1.0 | 23 Apr 2016 |
| Chain of Command | Leet Sketcher | Final Fantasy III | Role Playing | SNES | O | Bug Fix | 1.3 | 26 Feb 2018 |
| Celes + Terra | Drum Solo | Final Fantasy IV | Role Playing | SNES | G, T | Complete | 1.0 | 14 Sep 2002 |
| Castlevania - Dracula X SRAM | BillyTime! Games | Castlevania: Dracula X | Action > Platformer | SNES | O | Improvement | 1.0 | 07 Feb 2022 |
| Castle Party | Leet Sketcher | Final Fantasy III | Role Playing | SNES | L | Bug Fix | 1.3 | 13 Jul 2017 |
| Caravaggio | Leet Sketcher | Final Fantasy III | Role Playing | SNES | GP | Bug Fix | 1.3 | 06 Feb 2018 |
| Captain Toad Treasure Tracker for SNES II | zacmario | Super Mario World | Action > Platformer | SNES | G, L, T, GP | Complete | 1.2 | 05 May 2018 |
| Captain Toad Treasure Tracker for SNES | zacmario | Super Mario World | Action > Platformer | SNES | G, S, L, T, GP, O | Complete | 1.1 | 09 Jul 2016 |
| Captain Commando: Arcade Edition | RealGaea | Captain Commando | Action > Beat 'Em Up | SNES | G, T | Improvement | 1.2 | 28 Dec 2021 |
| Cancel Button Dash | SilentEnigma | Final Fantasy III | Role Playing | SNES | GP | Improvement | 1.2 | 14 Sep 2021 |
| Can't Lose for Winning | Lenophis | Final Fantasy III | Role Playing | SNES | GP | Bug Fix | 1.1 | 19 Jan 2010 |
| Cacoma Knight - faster rom | sluffy | Cacoma Knight in Bizyland | Puzzle | SNES | O | Improvement | 20182501 | 25 Jan 2018 |
| Bye Bye Breath | Leet Sketcher | Final Fantasy III | Role Playing | SNES | L, GP | Bug Fix | 1.2 | 22 Sep 2016 |
| Buzzy's World Tour | Super Stiviboy | Super Mario World | Action > Platformer | SNES | G, S, L, T, GP | Complete | 1.0 | 05 Jul 2019 |
| Button Blunder | Mike Ferrell | Final Fantasy III | Role Playing | SNES | G | Improvement | 1.0 | 15 Oct 2020 |
| Buster Busts Loose Train Bugfix | KingMike's Translations | Tiny Toon Adventures: Buster Busts Loose! | Action > Platformer | SNES | GP | Bug Fix | 1.0 | 05 Oct 2008 |
