 | 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 | 8.33 |
| Wonder Boy III - Monster Lair (set 6, System 16A, FD1089A 317-xxxx) (clone of: wb3) | 1988 | Sega / Westone | wb35a | | 0.00 |
 | Wonder Boy in Monster Land (English bootleg) (clone of: wbml) | 1987 | bootleg | wbmlb | Platform / Shooter Scrolling | 0.00 |
| Wonder Boy in Monster Land (Galaxy Electronics English bootleg) (clone of: wbml) | 1987 | bootleg (Galaxy Electronics) | wbmlbg | | 0.00 |
| Wonder Boy in Monster Land (Japan New Ver., MC-8123, 317-0043) | 1987 | Sega / Westone | wbml | Platform / Shooter Scrolling | 6.53 |
| Wonder Boy in Monster Land (Japan not encrypted) (clone of: wbml) | 1987 | bootleg | wbmljb | Platform / Shooter Scrolling | 0.00 |
| Wonder Boy in Monster Land (Japan Old Ver., MC-8123, 317-0043) (clone of: wbml) | 1987 | Sega / Westone | wbmljo | Platform / Shooter Scrolling | 0.00 |
| | Wonder League '96 (Korea) | 1996 | SemiCom | wondl96 | | 0.00 |
| | Wonder League Star - Sok-Magicball Fighting (Korea) | 1995 | Mijin | wlstar | | 0.00 |
 | Wonder Momo | 1987 | Namco | wndrmomo | Fighter / 2D | 6.75 |
 | Wonder Planet (Japan) | 1987 | Data East Corporation | wndrplnt | Shooter / Flying Vertical | 0.00 |
| | Wonder Stick | 1969 | Yun Sung | wondstck | | 0.00 |
| | Wonder Wheel (Bellfruit) (Scorpion 4) (set 1) | 1969 | BFM | sc4wondw | | 0.00 |
| | Wonder Wheel (Bellfruit) (Scorpion 4) (set 2) (clone of: sc4wondw) | 1969 | BFM | sc4wondwa | | 0.00 |
| | Woodpecker (set 1) | 1981 | Amenip (Palcom Queen River) | woodpeck | | 10.00 |
