The Metarex Kingape was dispatched to steal the Planet Egg of a jungle-covered planet. He was escorted away from the planet by Metarex Carrer, only to run into the Blue Typhoon. After Carrer was shot down and he was forced back to the planet's surface, Kingape set out to face his foes by laying traps for them. This resulted in a number of encounters with Amy Rose, Cosmo, Cream the Rabbit, and Cheese before all four were attacked by Dr. Eggman. Upon the doctor's defeat, Kingape was dispatched by Amy using her Piko Piko Hammer.
The Metarex Kingape was a rather unimpressive, cowardly Metarex.