| Winning Run '91 (Japan) (1991/03/05, Main Ver 1.0, Sub Ver 1.0) | |
| Winning Run (World) (89/06/06, Ver.09) | |
| Winning Run Suzuka Grand Prix (Japan) (89/12/03, Ver.02) | |
| Wiping | |
| Wit's (Japan) | |
| Wivern Wings | |
| Wiz | |
| Wiz (Taito, set 1) | |
| Wiz (Taito, set 2) | |
| Wizard Fire (Over Sea v2.1) | |
| Wizard Fire (US v1.1) | |
| Wizard of Wor | |
| Wolf Fang -Kuhga 2001- (Japan) | |
| Wonder 3 (910520 Japan) | |
| Wonder Boy (not encrypted) | |
| Wonder Boy (set 1, 315-5135) | |
| Wonder Boy (set 1, 315-5177) | |
| Wonder Boy (set 2, 315-5178) | |
| Wonder Boy (set 2, not encrypted) | |
| Wonder Boy (set 3, 315-5135) | |
| Wonder Boy (set 4, 315-5162) | |
| Wonder Boy (set 5, bootleg) [Bootleg] | |
| Wonder Boy Deluxe | |
| Wonder Boy III - Monster Lair (set 1, Japan, System 16A, FD1094 317-0084 decrypted) [Bootleg] | |
| Wonder Boy III - Monster Lair (set 1, Japan, System 16A, FD1094 317-0084) | |
| Wonder Boy III - Monster Lair (set 2, Japan, System 16B, FD1094 317-0085 decrypted) [Bootleg] | |
| Wonder Boy III - Monster Lair (set 2, Japan, System 16B, FD1094 317-0085) | |
| Wonder Boy III - Monster Lair (set 3, World, System 16B, FD1094 317-0089 decrypted) [Bootleg] | |
| Wonder Boy III - Monster Lair (set 3, World, System 16B, FD1094 317-0089) | |
| Wonder Boy III - Monster Lair (set 4, Japan, System 16B, FD1094 317-0087 decrypted) [Bootleg] | |
| Wonder Boy III - Monster Lair (set 4, Japan, System 16B, FD1094 317-0087) | |
| Wonder Boy III - Monster Lair (set 5, Japan, System 16A, FD1089A 317-0086 decrypted) [Bootleg] | |
| Wonder Boy III - Monster Lair (set 5, Japan, System 16A, FD1089A 317-0086) | |
| Wonder Boy III - Monster Lair (set 6, World, System 16B, 8751 317-0098) | |
| Wonder Boy in Monster Land (English bootleg set 1) | |
| Wonder Boy in Monster Land (English, Virtual Console) | |
| Wonder Boy in Monster Land (Japan New Ver., MC-8123, 317-0043) | |
| Wonder Boy in Monster Land (Japan not encrypted) | |
| Wonder Boy in Monster Land (Japan Old Ver., MC-8123, 317-0043) | |
| Wonder League '96 (Korea) | |
| Wonder League Star - Sok-Magicball Fighting (Korea) | |
| Wonder Momo | |
| Wonder Planet (Japan) | |
| Woodpecker (set 1) | |
| Woodpecker (set 2) | |
| World Adventure | |
| World Court (Japan) | |
| World Cup '90 (bootleg, set 1) [Bootleg] | |
| World Cup '90 (bootleg, set 2) [Bootleg] | |
| World Cup '90 (bootleg, set 3) [Bootleg] | |