| Zozo Sign Petty Fix | Madsiur | Final Fantasy III | Role Playing | SNES | G | Bug Fix | 1.0 | 21 Oct 2016 |
| Zombie/Tapir | Leet Sketcher | Final Fantasy III | Role Playing | SNES | GP | Bug Fix | 1.2 | 03 Mar 2018 |
| Zombie/Rippler | Leet Sketcher | Final Fantasy III | Role Playing | SNES | GP | Bug Fix | 1.2 | 03 Mar 2018 |
| Zombie Hunter Bug Fix | KingMike's Translations | Zombie Hunter | Role Playing > Action RPG | NES | GP | Bug Fix | 1.0 | 31 Jan 2006 |
| Zenkoku Juudan Ultra Shinri Game Music Bugfix | Kung Fu Furby | Zenkoku Juudan Ultra Shinri Game | Other | SNES | S | Bug Fix | 1.0 | 28 Dec 2019 |
| Zelda no Densetsu FDS - secret door chime | rainponcho | Zelda no Densetsu: The Hyrule Fantasy | Action Adventure | FDS | S | Bug Fix | 0.1 | 19 Apr 2017 |
| Zelda 3 Max Consumables Fix | Kazuto | The Legend of Zelda: A Link to the Past | Action Adventure | SNES | GP | Bug Fix | 1.0 | 29 May 2016 |
| Ys - Fluffy Repair Service | minucce | Ys | Role Playing > Action RPG | NES | O | Bug Fix | 11c | 20 Dec 2021 |
| Xiao Ma Li palette fix | Guyver (X.B.M.) | Xiao Ma Li | Other | NES | G | Bug Fix | 1.0 | 17 Oct 2016 |
| Wrong Way, Idiot! | Mike Ferrell | Final Fantasy VI Advance | Role Playing | GBA | GP, O | Bug Fix | 1.1 | 03 Nov 2016 |
| Wrong Way, Idiot! | Mike Ferrell | Final Fantasy III | Role Playing | SNES | GP | Bug Fix | 1.0 | 26 Oct 2016 |
| Wonder Boy 3 - credits fix | sluffy | Wonder Boy III: The Dragon's Trap | Adventure | SMS | G, T | Bug Fix | 1.0 | 08 Sep 2017 |
| Wolfchild CD - Level 2 Restoration | Diogo Ribeiro | Wolfchild | Action > Platformer | SegaCD | G | Bug Fix | 1.0 | 23 Aug 2021 |
| Wizardry Empire: Fukkatsu no Tsue - bug fix | rainponcho | Wizardry Empire: Fukkatsu no Tsue | Role Playing | GB | O | Bug Fix | 0.2 | 22 Feb 2017 |
| Wizardry Empire - bug fix | rainponcho | Wizardry Empire | Role Playing | GB | GP, O | Bug Fix | 0.1 | 06 Mar 2017 |
| Wizardry - Proving Grounds of the Mad Overlord AC fix | fatboysim13 | Wizardry: Proving Grounds of the Mad Overlord | Role Playing | NES | G, GP | Bug Fix | 1.0 | 14 Dec 2013 |
| Willow fixed tuning | lidnariq | Willow | Role Playing > Action RPG | NES | S | Bug Fix | 1.0 | 20 Apr 2022 |
| Waterworld Sound Driver Fix | LucianoTheWindowsFan | Waterworld | Action Adventure | SNES | S | Bug Fix | 1.0 | 07 Oct 2021 |
| War of the Lions Slowdown Removal Patch | Eternal248 | Final Fantasy Tactics: The War of the Lions | Strategy > Turn Based | PSP | GP | Bug Fix | 2.0 | 23 Oct 2012 |
| Walk This Way | Leet Sketcher | Final Fantasy III | Role Playing | SNES | GP | Bug Fix | 1.0 | 02 Aug 2017 |
