Fuckin love Metalocalypse. And it gets kind of intense towards the end, I still need to watch Army of the Doomstar. Doomstar Requiem is honestly probably one of the best albums I've ever heard from any band ever.

Also, I used to love Megas XLR too. Such a weird "rule-of-cool" show. An alien shows up with a device that turns your car into a giant mech? And then you have to defend your planet (and the galaxy) from giant creatures? Hell yes.