Tabuu has been shown to be so powerful that he could beat every NINTENDO character teaming up in one blow. While some would say it didn’t count because not every Nintendo character was there it would have made no difference. They would have gotten blasted away just like everyone else. Tabuu is a being of power so immense that few can even comprehend it, let alone beat it. Tabuu is unbeatable to put it simply.

His Main Forms

His Record

L Mario
L Goku
L Gohan