What is Jak from jak and daxter

he is a video game with a little mutant human on his shoulder. He is Play Station 2's biggest seller of all time. It is rated Teen but if parents are reading this its not that violent in this action packed 5 game series.

all that happens is that they in the case of the guards fall over and disappear in a purplish red cloud in the case of the really really big metalheads they roar and roll over and disappear in a cloud of the same color.