In an exclusive clip from "Batman Unlimited: Monster Mayhem," Red Robin (Yuri Lowenthal) faces off against Clayface (Dave B. Mitchell) as he attempts to rescue game developer Gogo Shoto (Noel Fisher) from the Joker's (Troy Baker) clutches.

In addition to re-teaming Batman with Green Arrow, Nightwing, Cyborg and more of his heroic compatriots, the new animated film also features the first appearance of the Joker, who is aided in his Halloween quest to render modern technology useless and take over Gotham City by Solomon Grundy, Silver Banshee, Clayface and Scarecrow.

EXCLUSIVE TRAILER DEBUT: Joker Rules in "Batman Unlimited: Monster Mayhem"

"Batman Unlimited: Monster Mayhem" is produced and directed by Butch Lukic (Batman Unlimited: Animal Instincts, Batman Beyond) from a script written by Heath Corson (Batman: Assault on Arkham).

Released by Warner Bros. Home Entertainment, "Batman Unlimited: Monster Mayhem" is available now on Digital Download, on Blu-ray and DVD.