the liquid solex, however, produces unexpected effects in robots; this is referred to as solex infection. as the epu is placed under heavy stress or emotions, the uncontrollable energy reaction of the liquid solex causes them to malfunction and go berserk. besides the behavioral malfunction, the infected robot also gains extreme power far beyond its normal capabilities. however, this extreme power could overload the host and cause self-destruction unless the solex is removed, the robot is deactivated, or its energy returns to normal levels.