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 Hugo, 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.

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.

"[1] 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.