The RedEye King became a guardian afterGeneral Scales released the RedEye Tribe from jail, and he put the third SpellStone on the RedEye King's forehead.
Later, whenFox McCloud finds bothSacred Teeth and places them into the lair, he enters the deep temple where he is confronted by RedEye King. To attack him, Fox must press a series of switches around a square hallway to electrocute and stun him. During this opportunity, Fox must pick up aFuel Barrel and throw it at RedEye King. RedEye King attacks Fox by roaring and then using his foot.
After being hit four times, RedEye King collapses, and Fox tries to remove the SpellStone from its head. The RedEye King suddenly gets up and attempts a final attack, by biting Fox with his sharp jaws. Fox dodges his attack an penetrates thestaff through the RedEye King's head, killing him.