Lex Luthor's Juggernaut is a giant truck-like vehicle found in the level 'The Juggernaut'. Inside, there are loads of Goons and a couple of scientists. Joker and Lex Luthor are also inside, trying their best to stop Batman and Robin. In the level, Batman gets some Kryptonite which he thinks is real, but turns out to actually be a beacon. It takes Joker and Lex Luthor to the Batcave, where they park the Juggernaut outside and go inside to attack. The Juggernaut can also be found and bought from somewhere in Gotham City.