Dr. Viper

Dr. Viper is Megakat City's resident mad scientist. He is part snake, possessing a long prehensile tail. An evil biochemist, he dwells in the Dead Forest area of Megakat Swamp, and is constantly plotting to turn the entire city into a festering, mutation-filled swamp. He was once a mere lab assistant, Dr. Elrod Purvis, working under Dr. N. Zyme at Megakat Biochemical Labs until he tried to steal Viper Mutagen 368, spilling it on himself, mutating himself into his current form.