Gerifix is an evil robot.He has the power to steal peoples souls.When he steals souls they go into the crystal on his body and it makes him stronger.Gerifix battles Ben and Gwen and Kevin 11 in the episode the wrath of Gerifix.But in the episode Ben is 10 and Kevin is 11.And Gwen is 11.Gerifix is blue robot with green eyes and he can shoot missiles from his hands.