| Warsong Graphics Hack | Jon Najar | Warsong | Strategy > Turn Based | GEN | G | Improvement | 1.0 | 01 May 2008 |
| Waterworld Sound Driver Fix | LucianoTheWindowsFan | Waterworld | Action Adventure | SNES | S | Bug Fix | 1.0 | 07 Oct 2021 |
| Waterworld (Better Controls) | elbobelo | Waterworld (Europe) (Proto) | Action | GEN | GP | Improvement | 1.0 | 03 Mar 2022 |
| unQue Shuishang Motuo | Zoinkity | Wave Race 64 | Racing | N64 | O | Improvement | 1.0 | 14 Jun 2022 |
| Wayne Gretzky Hockey: Colour Team Names | NaOH | Wayne Gretzky Hockey | Sports | NES | T | Improvement | 1.0 | 23 Jan 2020 |
| Wayne Gretzky Hockey: Penalty Reduction | NaOH | Wayne Gretzky Hockey | Sports | NES | GP | Improvement | 1.0 | 23 Jan 2020 |
| WCW Master to Andre the Giant | SCD | WCW World Championship Wrestling | Sports | NES | G, T | Improvement | Final | 13 Dec 2022 |
| Easy moves and Zarak | Docrow | WeaponLord | Action > Fighting | SNES | GP | Improvement | 1.0 | 01 Mar 2019 |
| Wendy: Every Witch Way - Force GBA Enhanced Mode | celebi23 | Wendy: Every Witch Way | Action > Platformer | GB | G | Improvement | 1.0 | 14 Jun 2018 |
| Wheel of Fortune Gamer Edition | jeffXvX | Wheel of Fortune | Puzzle | NES | T, O | Improvement | 1.0 | 04 Nov 2018 |
| Wheel of Fortune Final Fantasy Edition | Entroper | Wheel of Fortune | Puzzle | NES | T, O | Improvement | 1.0 | 12 Feb 2023 |
| Where's Waldo Big Cursor | guitarpalooz | Where's Waldo? | Puzzle | NES | GP | Improvement | 1.0 | 07 Dec 2020 |
| Saiyuuki World 2 MMC-3 Hack | MottZilla | Whomp 'Em | Action > Platformer | NES | O | Improvement | 1.0 | 11 Aug 2008 |
| Whomp'Em Easy | chronix | Whomp 'Em | Action > Platformer | NES | GP | Improvement | 1.0 | 24 Jul 2021 |
| Wild Arms 2 FMV Undub | birdybro | Wild Arms 2 | Role Playing | PSX | G, S | Improvement | 1.0 | 24 Jul 2022 |
| Biff Gunman | Oswego | Wild Gunman | Action > Shooter | NES | G | Complete | 1.0 | 17 Oct 2021 |
| Anon Gunman | Inventor | Wild Gunman | Action > Shooter | NES | G | Complete | 1.0 | 01 Jan 2000 |
| Fast Gunman | Inventor | Wild Gunman | Action > Shooter | NES | G | Complete | 1.0 | 01 Jan 2001 |
| Wild Guns - Fastrom | kandowontu | Wild Guns | Action > Shooter | SNES | GP | Improvement | 1.0 | 20 Feb 2023 |
| Willow No Flash Hack | Jigglysaint | Willow | Role Playing > Action RPG | NES | G | Improvement | 1.1 | 10 Nov 2020 |
