The Bugs Bunny Crazy Castle 2

The Bugs Bunny Crazy Castle 2, known in Japan as ミッキーマウスII (Mickey Mouse II) and in Europe either as Hugo or simply Mickey Mouse, is a video game originally developed by Kemco for the Game Boy in 1991. It is the sequel to the 1989 Nintendo Entertainment System and Game Boy game "The Bugs Bunny Crazy Castle".
Gameplay and plot.
Bugs Bunny must save his girlfriend Honey Bunny from Witch Hazel's enemy-filled castle. There are 28 levels with keys to collect. In each level is a locked door leading to the next level; to open it, the player must collect eight keys placed throughout the level. Various Looney Tunes characters are encountered, including Yosemite Sam, Daffy Duck, Wile E. Coyote, Little Ghost, Moth and the Flame, Sylvester, Foghorn Leghorn, Tasmanian Devil, Beaky Buzzard, Marc Antony, Merlin the Magic Mouse, and Tweety.
In the 1995 European conversion, converted into the "Hugo" franchise, Hugo the troll's wife Hugolina gets kidnapped by the Horned King, ruler of the castle Arbarus, after agreeing to his invitation. Hugo goes to the castle to defeat the Horned King and rescue Hugolina.
Reception.
"GamePro" writer 'Riff Raff' 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." In August 1998, the "Hugo" version received a "Platinum" sales award from the Verband der Unterhaltungssoftware Deutschland (VUD), indicating sales of at least 200,000 units across Germany, Austria and Switzerland.