In Open Style mode, keep fighting until you are champion to access the Jack-In-The-Box boxer. Defend your championship title five times to access Snake. If you select Peek-A-Boo mode and fight until you are champion you can access Kiki, Mimi, and Roboxer. If you defend the championship title five times you can access Edward King (the promoter) and Carrie (the girl that carries the round cards).
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