| Wagyan Land | No Alternate Title | Namco | 09 February 1989 | Action > Platformer | NES | N | N | Y | N |
| Wagyan Land 2 | Wagan Land 2 | Namco | 14 December 1990 | Action > Platformer | NES | N | N | Y | N |
| Wai Wai World 2: SOS!! Paseri Jou | Wai Wai World 2: SOS!! Parsley Castle; Wai Wai World 2: S.O.S. from Parsley Castle | Konami | 05 January 1991 | Action > Platformer | NES | N | N | Y | N |
| War | No Alternate Title | Trump Grand Manufacturing | 01 January 1999 | Action | NES | N | N | Y | N |
| War in Middle Earth | No Alternate Title | Maelstrom Games | 1988 | Strategy | MSX | N | N | Y | N |
| War in the Gulf | La Guerra del Golfo | Gluk Video | January 1991 | Action > Shooter | NES | N | N | Y | Y |
| Wardner | Wardner no Mori Special | Mentrix Software | 25 April 1991 | Action > Platformer | GEN | N | N | Y | Y |
| Wario Land 3 | Wario Land 3: Fushigi na Orgel | Nintendo | 21 March 2000 | Action > Platformer | GB | N | Y | N | Y |
| Wario Land 4 | Wario Land Advance: Youki no Otakara | Nintendo | 21 August 2001 | Action > Platformer | GBA | N | N | Y | N |
| Wario Land II | No Alternate Title | Nintendo | 02 March 1998 | Action > Platformer | GB | N | Y | N | Y |
| Wario Land: Super Mario Land 3 | Super Mario Land 3: Wario Land | Nintendo | 21 January 1994 | Action > Platformer | GB | N | Y | N | N |
| Wario's Woods | Wario no Mori | Nintendo | 19 February 1994 | Puzzle | NES | N | N | N | Y |
| WarioWare D.I.Y. | Made in Ore | Nintendo | 29 April 2009 | Other | NDS | N | Y | N | N |
| WarioWare, Inc.: Mega Microgames! | Made in Wario | Nintendo | 21 March 2003 | Other | GBA | N | N | Y | N |
| Warlock | No Alternate Title | LJN | March 1995 | Action > Platformer | SNES | N | N | Y | N |
| Warlock | No Alternate Title | Acclaim | 1994 | Action > Platformer | GEN | N | N | Y | N |
| Warlocked | No Alternate Title | Nintendo | 24 July 2000 | Strategy | GB | Y | N | N | N |
| Warning Forever | No Alternate Title | Hikoza | 04 May 2004 | Action > Shooter | PC | N | N | Y | N |
| Warp & Warp | Warp Warp | Namco | 1984 | Action > Shooter | MSX | N | N | Y | N |
| Warpman | No Alternate Title | Namco | 12 July 1985 | Action | NES | N | N | N | Y |
