| Game Name | System |
|---|
| Wonder Boy III - Monster Lair (set 3, World, System 16B) (FD1094 317-0089) | MAME |
| Wonder Boy III - Monster Lair (set 3, World, System 16B) (bootleg of FD1094 317-0089 set) | MAME |
| Wonder Boy III - Monster Lair (set 4, Japan, System 16B) (FD1094 317-0087) | MAME |
| Wonder Boy III - Monster Lair (set 4, Japan, System 16B) (bootleg of FD1094 317-0087 set) | MAME |
| Wonder Boy III - Monster Lair (set 5, Japan, System 16A) (FD1089A 317-0086) | MAME |
| Wonder Boy III - Monster Lair (set 5, Japan, System 16A) (bootleg of FD1089A 317-0086 set) | MAME |
| Wonder Boy III - Monster Lair (set 6, World, System 16B) (8751 317-0098) | MAME |
| Wonder Boy in Monster Land (English bootleg set 1) | MAME |
| Wonder Boy in Monster Land (English bootleg set 2) | MAME |
| Wonder Boy in Monster Land (English bootleg set 3) | MAME |
| Wonder Boy in Monster Land (English, Virtual Console) | MAME |
| Wonder Boy in Monster Land (Japan New Ver., MC-8123, 317-0043) | MAME |
| Wonder Boy in Monster Land (Japan Old Ver., MC-8123, 317-0043) | MAME |
| Wonder Boy in Monster Land (Japan bootleg) | MAME |
| Wonder Boy in Monster Land (decrypted bootleg of English, Virtual Console release) | MAME |
| Wonder Boy in Monster Land (decrypted bootleg of Japan New Ver., MC-8123, 317-0043) | MAME |
| Wonder Boy in Monster Land (decrypted bootleg of Japan Old Ver., MC-8123, 317-0043) | MAME |
| Wonder League '96 (Korea) | MAME |
| Wonder League Star - Sok-Magicball Fighting (Korea) | MAME |
| Wonder Momo | MAME |
| Wonder Planet (Japan) | MAME |
| Wonder Stick (set 1) | MAME |
| Wonder Stick (set 2, censored) | MAME |
| Wonder Wheel (Bellfruit) (Scorpion 4) (set 1) | MAME |
| Wonder Wheel (Bellfruit) (Scorpion 4) (set 2) | MAME |
| Wondermega (Japan, NTSC) | MAME |
| Wondermega M2 (Japan, NTSC) | MAME |
| Woodpecker (set 1) | MAME |
| Woodpecker (set 2) | MAME |
| Woolpack (Ace) (sp.ACE) (set 1) | MAME |
| Woolpack (Ace) (sp.ACE) (set 10) | MAME |
| Woolpack (Ace) (sp.ACE) (set 11) | MAME |
| Woolpack (Ace) (sp.ACE) (set 12) | MAME |
| Woolpack (Ace) (sp.ACE) (set 13) | MAME |
| Woolpack (Ace) (sp.ACE) (set 14) | MAME |
| Woolpack (Ace) (sp.ACE) (set 15) | MAME |
| Woolpack (Ace) (sp.ACE) (set 16) | MAME |
| Woolpack (Ace) (sp.ACE) (set 2) | MAME |
| Woolpack (Ace) (sp.ACE) (set 3) | MAME |
| Woolpack (Ace) (sp.ACE) (set 4) | MAME |
| Woolpack (Ace) (sp.ACE) (set 5) | MAME |
| Woolpack (Ace) (sp.ACE) (set 6) | MAME |
| Woolpack (Ace) (sp.ACE) (set 7) | MAME |
| Woolpack (Ace) (sp.ACE) (set 8) | MAME |
| Woolpack (Ace) (sp.ACE) (set 9) | MAME |
| Word Up (Maygay) (EPOCH) (1.4, set 1) | MAME |
| Word Up (Maygay) (EPOCH) (1.4, set 2) | MAME |
| Word Up (Maygay) (EPOCH) (2.4, set 3) | MAME |
| Word Up (Maygay) (EPOCH) (2.4, set 4) | MAME |
| Word Up (Maygay) (EPOCH) (3.1, set 5) | MAME |
| Word Up (Maygay) (EPOCH) (3.1, set 6) | MAME |
| Word Up (Maygay) (EPOCH) (4.1, set 7) | MAME |
| Word Up (Maygay) (EPOCH) (4.1, set 8) | MAME |
| World Beach Volley (set 1) | MAME |
| World Beach Volley (set 2) | MAME |
| World Beach Volley (set 3) | MAME |
| World Challenge Soccer (disp.rev.2) | MAME |
| World Challenge Soccer (rev.1) | MAME |
| World Championship Baseball | MAME |
| World Championship Soccer (Mega-Tech) | MAME |
| World Class Bowling (v1.1) | MAME |
| World Class Bowling (v1.2) | MAME |
| World Class Bowling (v1.3) | MAME |
| World Class Bowling (v1.3J, Japan) | MAME |
| World Class Bowling (v1.4) | MAME |
| World Class Bowling (v1.5) | MAME |
| World Class Bowling (v1.6) | MAME |
| World Class Bowling (v1.61) | MAME |
| World Class Bowling (v1.65) | MAME |
| World Class Bowling (v1.66) | MAME |
| World Class Bowling Deluxe (v2.00) | MAME |
| World Class Bowling Tournament (v1.40) | MAME |
| World Club Champion Football European Clubs 2004-2005 (Japan) (CDV-10013) | MAME |
| World Club Champion Football European Clubs 2004-2005 Ver.1.1 (Export) (CDV-10015) | MAME |
| World Club Champion Football European Clubs 2004-2005 Ver.3.22 (Export) (CDV-10015P) | MAME |
| World Club Champion Football European Clubs 2005-2006 (Export) (CDV-10027) | MAME |
| World Club Champion Football Serie A 2001-2002 DIMM FIRM Ver.3.03 (CDP-10003) | MAME |
| World Club Champion Football Serie A 2001-2002 Ver.2 (Japan) (CDP-10001C) | MAME |
| World Club Champion Football Serie A 2002-2003 Drive Checker (CDV-10007) | MAME |
| World Club Champion Football Serie A 2002-2003 Ver.2.12 (Export) (CDV-10002) | MAME |
| World Club Champion Football Serie A 2002-2003 Ver.2.34 (Japan) (CDV-10008) | MAME |
| World Combat (ver AAD:B) | MAME |
| World Combat (ver AAD:B, alt) | MAME |
| World Combat (ver JAA) | MAME |
| World Combat (ver KBC:B) | MAME |
| World Combat / Warzaid (ver UCD:B) | MAME |
| World Court (Japan) | MAME |
| World Cup (Maygay, MV1 Video) | MAME |
| World Cup (Nova) (MPU4) | MAME |
| World Cup 90 | MAME |
| World Cup Soccer (L-1) | MAME |
| World Cup Soccer (La-2) | MAME |
| World Cup Soccer (Lx-2) | MAME |
| World Cup Soccer (Pa-2) | MAME |
| World Cup Soccer (Px-3) | MAME |
| World Cup Volley '95 (Japan v1.0) | MAME |
| World Cup Volley '95 Extra Version (Asia v2.0B) | MAME |
| World Darts (Arcadia, set 1, V 2.1) | MAME |
| World Darts (Arcadia, set 2) | MAME |
| World Defender | MAME |
