Crazy Castle

While presented in a side-scrolling platform game format, most of the Crazy Castle games do not have a jump function. By taking different planned routes (for example by stairs, ladders and teleporters) the character can avoid enemies and collect certain items. Some of the levels have weapons or invincibility items that can be used against the enemies in the game. There are also objects that the player must collect in order to complete a level, like keys. Passwords can be used to start at a certain level.

Kemco started the franchise after they licensed the rights to produce a Famicom Disk System game based on the film Who Framed Roger Rabbit. When Kemco was planning to release it outside Japan, there was already an NES game based on the same film developed by Rare and published by LJN. Licensing issues occurring in Western markets, as Capcom owned rights to release Disney-based video games outside Japan at the time, had also been cited as a factor. In order to release the game outside Japan, Kemco bought the rights to Warner Bros.' Looney Tunes franchise to produce Looney Tunes-based video games.

When the promotion of the film Who Framed Roger Rabbit in Japan ended, Kemco lost the rights to produce video games based on the film there, but gained the rights to produce Disney-based ones, due to the Who Framed Roger Rabbit film being produced by Touchstone Pictures, a studio owned by The Walt Disney Company. Kemco later produced their Mickey Mouse versions in the Crazy Castle series and released most of these versions exclusively in Japan, while continuing their Looney Tunes versions outside Japan; however, some were based on other licenses such as ITE's Hugo media franchise, Jim Davis's Garfield comic strip and The Real Ghostbusters animated television series.

GamePro gave Bugs Bunny Crazy Castle 2 a fairly positive review, opining that "with smooth animation, good fun, and lively action, Bugs Bunny on the Game Boy is actually better than the NES version."