I'm sick of hearing about how powerful Goku is; as if you need to be freakin' God to stand a chance against him. So here's a list of people who could handily kick Goku's ass; without a single one of them being a reality warper.

1) Dr. Manhattan: It's almost cheating to put him on the list. But Goku has no way of fighting him, and he can just tear Goku apart at a subatomic level.

2) Charles Xavier: He'd make Goku blast himself.

3) Kira: She'd also make Goku blast himself (note: referring to the one from Push, not the one from Death Note)

4) Maxwell: He'd equip Goku with some Dead Potion, causing instant death. Or create any weapon with "deadly" in the description. Or use the time machine to go back in time and kick Goku's ass before Goku became ridiculously overpowered or hit him with "disease", or.... (insert long list of horrible ways Maxwell could dispose of Goku here)

5) Squirrel Girl: Fear Squirrel Girl. FEAR HER WITH ALL OF YOUR ABILITY TO BE AFRAID!

6) Monica Rambeau: She'd turn into a mini-supernova and blast Goku into oblivion.

7) David Xanatos: Not saying he'd win a straight up fight. I'm saying that everything Goku could possibly do would turn out to be part of Xanatos' master plan.

9) The Gurren Brigade: It doesn't matter what level of Super Saiyan Goku ascends do; they've always got a BIGGER. FUCKING. DRILL. And a mecha powerful enough to wield it.

10) Flandre: Kyu, Goku's dead.