The Bat Bombs were green bat-themed explosives that are elaborate projectile weapons designed by the Riddler and objects featured in Batman Forever. These bombs show the deep-rooted egomania within the Riddler as he utilizes a gimmick that Batman has used for generations against the Caped Crusader, being one of the few times this type of weaponry was utilized *against* Batman (who has always been known for creating bat-based weapons himself).