The Infested Chopper (in Japanese: 出没チョッパー, Shutsubotsu Choppā) is a military helicopter possessed by the Infestants and a boss in Devil May Cry 2.
This chopper is one of the helicopters were purchased and owned by the Uroboros Corporation under their contracts and dealings with military governments of other nations. They are used to defend the international enterprise and their "city" located on Dumary Island off the coast of the Americas.
Later, one of these helicopter became possessed and controlled by ectoplasmic parasites called Infestants that fused with these machines. Now this military helicopter becomes the devils' tool of destruction.
The Infested Chopper appears attacking Dante after he destroyed two other possessed military vehicles that were targeting him. Dante defeated and destroyed Infestant-possessed helicopter and escaped with his life.