Suggested by Destroyer Doc Brown is one of the smartest guys to have graced the future with his presence. He’s definitely not someone who will go down easy, but without sufficient prep time there isn’t much he can do against Gigan. Gigan is in a completely different class both in power and speed. I don’t really see how Doc Brown can hope to challenge him here. His inventions won’t save him. Gigan wins.
DReager1.com 
Like Doc Brown or hate him, He’d lose here. What’ll be next as a request or battle: Bob the Builder vs. King Kong?*
*I am joking about that battle.
Heh, Gigan’s definitely been taking a lot of names lately! For sure this is definitely quite the blowout. Brown never stood a chance