Editor's Note: This video contains mature (and violent) content.

It's not always easy when you follow a band that's, say, less than prolific; the wait between release, and tours, can seem unbearable. So pity fans of Batman and the Children of Batman, who haven't performed since July 2014's "Batmetal."

But now Gotham's finest head-bangers are back with -- what else? -- "Batmetal Returns," a no-holds-barred cover of Dethklok's "Murmaider" that sees horrible things done to beloved childhood favorites Ariel, SpongeBob SquarePants, Squidward and Nemo. Oh, and Aquaman, who's their undersea captive.

As with "Batmetal," there also cameos by an assortment of characters, ranging from Wolverine and Venom to Indiana Jones and Lex Luthor. But be warned: The animated video is loud and violent, with a lot of gruesome deaths sandwiched between shots of jiggling crotches and breasts.

(via Geeks Are Sexy)