In most of his appearances in DC Comics, he can be stopped only by tricking him into saying or spelling his own name backwards (Kltpzyxm - "kel-tip-zix-um"), which will return him to his home in the 5th dimension and keep him there for a minimum of ninety days.
I sina flesta framträdanden i DC Comics kan han endast stoppas genom att luras till att säga sitt eget namn baklänges (Kltpzyxm - "kel-tip-zix-um"), vilket sänder honom tillbaka till sitt hem i den femte dimensionen och håller honom där i minst 90 dagar.