Valis (ヴァリス Varisu?) is a Japanese platform game series developed by Telenet Japan. The original game was developed in 1986 for the MSX, and its popularity has spanned four sequels, a spin-off, and remakes across several platforms, notably the TurboGrafx-16 and Sega Mega Drive until the early 1990s, when it was quietly retired. The Mega Drive/Genesis entries were all published in North America by Renovation Products. Later, Telenet sold the series' rights to a company known as Eants, which re-tooled the series as hentai games[1] after Telenet shut down in 2007. The series has formed two Mobile Phone games released by Bandai Namco Games in Japan and a manga by Kill Time Communications. The Valis games (as they were known in America) tell the story of Yūko Asō (麻生 優子 Asō Yūko?), a schoolgirl in late 1980s Japan who is fated to protect three different realms – our own Earth, the land of spirits, and Vecanti (ヴェカンティ Vekanti?), the Dream World – by wielding a mystical sword known as Valis.

Valis III (ヴァリスⅢ, Varisu Surī?) is an action-platformer video game developed by Telenet Japan and originally released for the PC Engine Super CD-ROM² on September 7, 1990 in Japan. It was later released for the Sega Mega Drive/Genesis in 1991 both in Japan and North America, and for the TurboGrafx-CD in 1992 in North America. It is the third game in the Mugen Senshi Valis series and once again features Yūko Asou (麻生 優子, Asou Yūko?) as the lead character. She is also joined by her twin sister, Valna, and a young Vecanti warrior named Cham who are playable characters.

Vapor Trail: Hyper Offense Formation, known in Japan as Kuhga – Operation Code Vapor Trail (空牙 – Operation Code Vapor Trail?) and usually simply referred to as Vapor Trail, is a 1989 shoot 'em up arcade game developed and published by Data East. Vapor Trail was followed by Wolf Fang and Skull Fang Kuhga Gaiden.

Vector the Crocodile in Sonic the Hedgehog (aka Vector in Sonic 1) is a hack of Sonic 1 by E-122-Psi, starring Vector the Crocodile as the playable character instead of the blue hedgehog. The game is modified to use Vector's sprites (edited from Knuckles Chaotix) in place of Sonic's, along with several modifications to the player's stats and abilities.The game was modified by Sonic Retro member E-122-Psi, with additional programming and coding by other members including MarkeyJester and flamewing.

Wacky Worlds Creativity Studio is a children's video game for the Sega Genesis, released in 1994. In it, the player has a choice of six different Wacky Worlds in which they can place animated "stickers", creating a diorama using two-dimensional computer graphics. Among the Worlds are an underwater scene, a scene inside a house, a jungle, and the Moon. The user is also able to alter the music played in each world by selecting from a bank of different music stickers. It is considered the sequel to Sega's Art Alive!. Wacky Worlds is the first title released under the "Sega Club" label, a collection of Sega titles for kids.

Warlock is a 1995 platform video game loosely based upon the horror film series of the same name. It was released on Aug 15, 1995 through Acclaim Entertainment for the Sega Genesis/Mega Drive and Super Nintendo systems.