The Super-Batman of Planet X!

Teaser: Dr. Milton Magnus and the Metal Men team up with Batman (who is undercover using his Matches Malone persona) to take down Kanjar Ro and his gang of intergalactic space bandits.
Main Plot: Green Arrow assists Batman in defeating the remaining space pirates, but during a chase, a wormhole is created and it sends Batman to the distant planet Zur-En-Arrh in the city of Gothtropolis. There he meets his doppelganger, the Batman of Zur-En-Arrh, but more surprisingly, on this planet the Caped Crusader has super powers. Together, they battle the mad genius Rohtul who soon learns Batman’s super weakness. (The batman from Zur En Arrh is voiced by Kevin Conroy)