"Invader Zim" followed the hilarious plight of one ill-tempered alien trying to single-handedly take over all of Planet Earth alongside their robot helper, GIR. Unfortunately, despite GIR being a technologically advanced machine capable of independent thought, he only ever seemed concerned with partying and acting like a child. But what if GIR's taco-craving, idiotic personality was really just a facade to intentionally make Zim BELIEVE that he was dumb?