C4's appearance is that of a Light-Green robot with pale skin and black hair,with an arm cannon(formerly a basketball launcher)and eyes of unknown color and what seems to be a afro. hes presented as a heroic character but slowly his true evil self is unravelled,C4 is very loud and aggressive,often taking things too seriously and will say no to almost everything that involves working together with another being,his enemy is "LA JUPO" him and LA JUPO fight every 300 years, C4 can also fire lasers