Samurai Warrior: The Battles of Usagi Yojimbo -
Firebird (1987)

Adventures of the samurai rabbit Usagi Yojimbo as he battles across a colourful oriental background inhabited by monks, ninjas, villagers and monsters.  Can he save his friend or will he lose too much karma and commit suicide in the traditional samurai way?  This is great - a scrolling fighting game with cartoon style graphics and a rabbit with attitude!  Thoroughly recommended.