Source: Justice League: Crisis on Two Earths (2010)
That small part in the direct-to-DVD Justice League movie had me wondering if this Jimmy had similar (but morally opposite) adventures. Was he ever Ultraman's roommate? Did he turn into Rubber Lord and hang with the Legion of Super-Villains? Did he have a trunk of costumes he used to commit crime, or a flying war-room?
I dread to think what happened to that world's Lucy Lane, as well...