In another universe, Sam Reich is part of Batman's rogues' gallery.
I can't believe this got left in the tags.
Batman finds him moderately annoying. The RIDDLER on the other hand, is determined to kill this man if it is the last thing he ever does.
An episode without Batman, it's just the Riddler following a series of prompts that lead him all over Gotham, which eventually lead back to his own lair. As the Riddler walks confused into a dark room, all the lights turn on, blinding him. He tries to adjust his vision when he just hears "I've been here the whole time."

















