 The boss characters of the game include Papu Papu , an obese and short @-@ tempered chief of the native village ; Ripper Roo , a demented kangaroo with razor @-@ sharp toenails ; Koala Kong , a muscular but unintelligent koala ; and Pinstripe Potoroo , Doctor Cortex 's tommy gun @-@ wielding bodyguard . 
