Toxins

Toxins are barricaded in both liquid and gas forms and are poisonous waste that kills you instantly. Only certain characters are immune to them.
Toxins played a large part in creating the Joker, who fell into such waste at Ace Chemicals.
==Characters immune to it==
* The Joker and The Joker (Tropical)
* Two-Face and Harvey Dent (Two-Face)
* Mr. Freeze
* Bane (Console)
* Killer Croc
*Harley Quinn/Dr. Harleen Quinzel (Only on DS)
*Poison Ivy/Pamela Lillian Isley
*Bio-Hazard Scientist
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