World of Illusion Starring Mickey Mouse and Donald Duck, known in Japan as I Love Mickey & Donald - The Mysterious Magic Box (World of Illusion - アイラブ ミッキー＆ドナルド - ふしぎなマジックボックス World of Illusion - Ai Rabu Mikki ando Donarudo - Fushigi na Majikku Bokkusu?) is a Sega Mega Drive/Genesis platform game that was produced by Sega of Japan and released in 1992. It is part of Sega's Illusion series of Mickey Mouse games.

World Trophy Soccer is the name given to two distinct video games: World Trophy Soccer, a 1989 game by Virgin Mastertronic later reworked as World Cup Soccer: Italia '90. World Trophy Soccer, a 1992 game for the Sega Genesis, a reworking of European Club Soccer.

WWF Royal Rumble is a professional wrestling video game released by LJN in 1993 for the Super NES and Sega Genesis. Like its predecessor, WWF Super WrestleMania it is based on the World Wrestling Federation. It features a variety of match types, including the newly added Royal Rumble match. The game's roster consists of wrestlers who were top stars in the WWF at the time, and each version of the game has five exclusive playable characters. The game boasts several new features, including an on-screen meter grappling meter and steel chairs that can be used as weapons. Royal Rumble also adds a variety of new moves, including illegal tactics such as choking and each wrestler's signature finishing moves. The game was followed up with the Sega Mega-CD release WWF Rage in the Cage and a direct sequel, WWF Raw.

WWF WrestleMania (also known on console versions as WWF WrestleMania: The Arcade Game) is a professional wrestling arcade game released by Midway Manufacturing Co. in 1995. It is based on the World Wrestling Federation (WWF) professional wrestling promotion. The game featured digitized representations of eight WWF performers who are pitted against each other in fast-paced matches inspired by Midway's Mortal Kombat games. Commentary is provided by Vince McMahon and Jerry Lawler, who also appear in the game sitting at the announcers' table to the right of the ring. Acclaim, who published the console versions of the game, developed a follow-up, WWF in Your House for the PlayStation, Sega Saturn, and DOS.

XDR (エックス・ディー・アール?) (short for "X-Dazedly-Ray") is a 1990 Japanese shoot 'em up game released for the Sega Mega Drive. It is a sideways scrolling shoot 'em up containing six levels.

X-Men 2: Clone Wars is a 1995 platform game developed by Headgames and released by Sega of America for the Mega Drive/Genesis as a sequel to the 1993 side-scrolling video game X-Men. The game is based on the successful TV series from Marvel Comics. X-Men 2 was praised by critics and retrospectively acclaimed as one of the best games on the platform. It was supposed to be followed by a cancelled sequel titled X-Women.

X-Perts is a side-scrolling fighting action video game produced by Sega of America and released only in North America for the Sega Genesis in 1996. It is a spin-off of Eternal Champions starring the assassin Shadow Yamoto, who is depicted in her design from Eternal Champions: Challenge from the Dark Side.