Greenscreen won the Jermarumble, Jerma go mad at that fact and then made a second rumble that was canon so someone else but the joke character could win the rumble. As soon as Greenscreen entered the ring in that rumble the whole game crashed so no one could take his win away from him.

Greenscreen then kicked everyone’s ass so much, defeating Jerma;

Jex;

And Adam Sandler

that Jerma had to engineer Super Jex just to beat him. It took super saiyan 2, two Sans eyes, and two, count em, two infinity gauntlets to take out Greenscreen. And even then he kicked Super Jex’s ass for the first half of the fight.