Space Channel 5 is a console game, which was first released on the Sega Dreamcast. The producer of this game is Tetsuya Mizuguchi, the man who is also behind Sega Rally. It features the character Ulala (a reference to the phrase "ooh la la"). Game is similar to Dance Dance Revolution and earlier memorization games like Simon Says where the computer shows a sequence of moves - dance steps in this case - and the player must copy them successfully to advance. The original Space Channel 5 was published in Japan, the US and Europe on the Dreamcast but the sequel, Space Channel 5: Part 2 was only released in Japan for the Dreamcast, and in English on the PlayStation 2.

In early 2003, Lady Miss Kier, formerly of the band Deee-Lite, initiated a lawsuit against SEGA corporation for allegedly stealing her former persona and using it as the basis of a video game character. The lawsuit was based on accusations of copying her look of knee-high boots, short skirts and a pink ponytail, for SEGA's Ulala character design. Lady Miss Kier (who's real name is Kierin Kirby) claims that SEGA offered to pay her $16,000 to license her name, image and songs for the game, though she rejected their offer. Kirby later learned that the videogame maker went ahead and used her resemblance anyway, and she decided to initiate the lawsuit, seeking more than $750,000 in damages.