KryptoniteBack to Objects Main > Kryptonite
Real Identity: Not Applicable
Appearances: Play Date, Field Trip, Inside Job, and Battle for the Bottled City
Voiced By: Not Applicable
Kryptonite are irradiated remains of Superman's home planet Krypton that have landed on Earth. Green Kryptonite leaves Superman powerless in a weakened state. He has confiscated many pieces of Kryptonite and keeps them in storage in a room at the Fortress of Solitude. Toyman developed toy called Star Sparkle Super Putty which was really Kryptonite. After he broke into the Watchtower, he launched the putty shell at Superman. It burst open and the Kryptonite wrapped around Superman, leaving him powerless. While being forced to fight in Toyman's "Blvd Brawlers 2 JLA" video game, Superman was dismayed after he learned Batman kept a Kryptonite ring in his utility belt. Once Cyborg had Batman's Super Meter charged, he activated the Kryptonite Ring Punch move. Batman knocked out Superman and won the match.
Blue Beetle, Firestorm, and Stargirl attempted to neutralize Zod, Faora, and Quex-Ul with one of Superman's Kryptonite samples but it was too small. Firestorm found the sample amid the rubble from the battle and focused on studying its atomic structure in order to add it to his arsenal. Firestorm was overwhelmed by the information but Professor Stein guided him towards concentrating. Firestorm rejoined the battle in time and generated Kryptonite from his hands to defeat Zod, Faora and Quex-Ul before they killed Stargirl and Blue Beetle. Firestorm bound them in Kryptonite chains but absorbed the energy flowing towards Superman to keep him unaffected. For the mission to destroy the nanobots infecting Superman, the Atom outfitted a laser sword with just enough Kryptonite to cut through Superman's nose hairs and other potential obstacles. He put it to use to hack the nanobots as well. Luthor surmised the Atom was helping save Superman and breached the Watchtower. He bathed Superman in Kryptonite rays but the Atom intervened and ran off with the gun.
The Atom used a sliver of Kryptonite with his white dwarf technology to shrink Superman so he could journey into the Bottled City of Kandor to meet his people for the first time and collect tissue samples.