 | Vulcan Venture (New) | 1988 | Konami | vulcan | Shooter / Flying Horizontal | 7.44 |
| Vulcan Venture (Old) (clone of: vulcan) | 1988 | Konami | vulcana | | 0.00 |
| Vulcan Venture (Oldest) (clone of: vulcan) | 1988 | Konami | vulcanb | | 0.00 |
 | Who Dunit (version 8.0) | 1988 | Exidy | whodunit | Shooter / Gun | 7.44 |
| | Winning Run | 1988 | Namco | winrun | | 7.50 |
 | Wonder Boy III - Monster Lair (bootleg) (clone of: wb3) | 1988 | bootleg | wb3bbl | Platform / Shooter Scrolling | 0.00 |
| Wonder Boy III - Monster Lair (set 1, System 16A, FD1094 317-0084) (clone of: wb3) | 1988 | Sega / Westone | wb31 | Platform / Shooter Scrolling | 0.00 |
| Wonder Boy III - Monster Lair (set 2, Japan, System 16B, FD1094 317-0085) (clone of: wb3) | 1988 | Sega / Westone | wb32 | Platform / Shooter Scrolling | 0.00 |
| Wonder Boy III - Monster Lair (set 3, World, System 16B, FD1094 317-0089) (clone of: wb3) | 1988 | Sega / Westone | wb33 | Platform / Shooter Scrolling | 0.00 |
| Wonder Boy III - Monster Lair (set 4, Japan, System 16B, FD1094 317-0087) (clone of: wb3) | 1988 | Sega / Westone | wb34 | Platform / Shooter Scrolling | 0.00 |
| Wonder Boy III - Monster Lair (set 5, System 16A, FD1089A 317-xxxx, bad dump?) (clone of: wb3) | 1988 | Sega / Westone | wb35 | | 0.00 |
| Wonder Boy III - Monster Lair (set 5, World, System 16B, 8751 317-0098) | 1988 | Sega / Westone | wb3 | Platform / Shooter Scrolling | 7.15 |
| Wonder Boy III - Monster Lair (set 6, System 16A, FD1089A 317-xxxx) (clone of: wb3) | 1988 | Sega / Westone | wb35a | | 0.00 |
 | World Court (Japan) | 1988 | Namco | wldcourt | Sports / Tennis | 8.62 |
 | World Stadium (Japan) | 1988 | Namco | ws | Sports / Baseball | 7.50 |
| | Xenon (Arcadia, V 2.3) | 1988 | Arcadia Systems | ar_xeon | Shooter / Misc. Vertical | 0.00 |
