| Hook - Fastrom | kandowontu | Hook | Action > Platformer | SNES | GP | Improvement | 1.0 | 21 Feb 2023 |
| Hoodle | Inventor | Pinball | Other | NES | G | Improvement | 1.0 | 01 Jan 2001 |
| Honey Peach - Garbled Creature Queen Plastic Surgery | Flake | Honey Peach | Card Game | NES | G | Bug Fix | 1.0 | 06 Oct 2008 |
| Homing Attack and Jumpdash in Sonic 2 | Hitaxas | Sonic the Hedgehog 2 | Action > Platformer | GEN | GP | Improvement | 1.0 | 29 Jan 2009 |
| Home Improvement: More Power! Edition | Ryusui | Home Improvement | Action > Platformer | SNES | GP | Improvement | 1.0 | 14 Apr 2013 |
| Home Alone SRAM | BillyTime! Games | Home Alone | Action > Platformer | SNES | O | Improvement | 1.0 | 21 Dec 2022 |
| Home Alone - Improved Version | lancuster | Home Alone | Action | NES | O | Improvement | 1.0 | 02 Nov 2016 |
| Holy Randomness Batman! | Lenophis | Final Fantasy III | Role Playing | SNES | GP | Improvement | 1.6a | 30 Oct 2008 |
| Holy Diver MMC-1 Hack | MottZilla | Holy Diver | Action | NES | O | Improvement | R1 | 09 Jun 2012 |
| Holy Diver Easy | chronix | Holy Diver | Action | NES | GP | Improvement | 1.0 | 10 Dec 2018 |
| Holy Diver - Input Handling Fix | Equidies | Holy Diver | Action | NES | O | Bug Fix | 1.0 | 20 Mar 2023 |
| Holiday Hex | Mr. Tenda | EarthBound | Role Playing | SNES | G, S, L, T | Complete | 1.0.1 | 28 Jun 2013 |
| Hokuto no ken ps2 unlock 640x480p | Felixthecat1970 | Hokuto no Ken 北斗の拳 ～審判の双蒼星 拳豪列伝 | Action > Fighting | PS2 | G, O | Improvement | v2 | 07 Jul 2022 |
| Hokuto no Ken 3 - Sprite Fix | Zynk Oxhyde | Hokuto no Ken 3: Shin Seiki Souzou Seiken Restuden | Role Playing | NES | G | Bug Fix | 1.0 | 15 Feb 2019 |
| Hiryuu no Ken 3.2 The Revenge | DANGER X | Hiryuu no Ken III: 5 Nin no Ryuu Senshi | Action > Beat 'Em Up | NES | L, GP | Complete | 1.0 | 15 Oct 2015 |
| Hiryuu no Ken - Min-Min edition | poody | Flying Dragon: The Secret Scroll | Action | NES | G, T, O | Improvement | 1.0 | 16 Aug 2021 |
| Hiro Mario 2 | Mitendo | Super Mario Bros. | Action > Platformer | NES | L | Complete | 1.0 | 01 Jan 2004 |
| Hiro Mario | Mitendo | Super Mario Bros. | Action > Platformer | NES | G, L | Complete | 1.0 | 01 Jan 2004 |
| Hikaru no Go (NES) | Kozakurainko | Igo Shinen '93 | Boardgame | NES | G | Improvement | 1.0 | 21 Feb 2006 |
| Higher Resolution Backsprites | Seasick | Pokémon: Red Version | Role Playing | GB | G | Improvement | 1.0 | 30 Oct 2021 |
