| | Witch Card (Video Klein CPU box, set 2) (clone of: witchcrd) | 1991 | Video Klein | witchcde | | 0.00 |
| | Witch Game (Video Klein, set 1) | 1991 | Video Klein | witchgme | | 0.00 |
 | Wolf Fang -Kuhga 2001- (Japan) (clone of: rohga) | 1991 | Data East Corporation | wolffang | | 0.00 |
 | Wonder 3 (Japan 910520) (clone of: 3wonders) | 1991 | Capcom | wonder3 | Multiplay | 0.00 |
| | WPC Test Fixture: DMD (L-3) | 1991 | Bally | tfdmd_l3 | | 0.00 |
| | Wrestle War (Mega-Tech) | 1991 | Sega | mt_wwar | | 0.00 |
 | WWF WrestleFest (Japan) (clone of: wwfwfest) | 1991 | Technos Japan | wwfwfestj | | 0.00 |
| WWF WrestleFest (US bootleg) (clone of: wwfwfest) | 1991 | bootleg | wwfwfestb | | 0.00 |
| WWF WrestleFest (US set 1) | 1991 | Technos Japan | wwfwfest | Wrestling | 5.95 |
| WWF WrestleFest (US Tecmo) (clone of: wwfwfest) | 1991 | Technos Japan (Tecmo license) | wwfwfesta | | 0.00 |
| | X the Ball | 1991 | Rare | xtheball | | 2.00 |
 | Xexex (ver AAA) (clone of: xexex) | 1991 | Konami | xexexa | | 0.00 |
| Xexex (ver EAA) | 1991 | Konami | xexex | Shooter / Flying Horizontal | 6.57 |
| Xexex (ver JAA) (clone of: xexex) | 1991 | Konami | xexexj | Shooter / Flying Horizontal | 0.00 |
![Yumefuda [BET]](../snapsmall/MS_4460.html) | Yumefuda [BET] | 1991 | Alba | yumefuda | Unplayable | 2.50 |
