User summary This is the fourth installment in the Crazy Castle series. Again the player controls Bugs Bunny through a series of levels. In the levels the player comes across the likes of Yosemite Sam, Daffy Duck, Elmer Fudd, Taz and While E. Coyote, Crazy Castle 4 features over 60 levels. In order to finish each of over 60 levels, a number of keys have to be found.