Code Name: Viper, originally released as Ningen Heiki Dead Fox (人間兵器デッドフォックス, Ningen Heiki Deddo Fokkusu, lit. "Human Weapon Dead Fox"), is a side-scrolling action game programmed by Arc System Works and released by Capcom in 1990 for the Nintendo Entertainment System. The player takes control of a special forces operative who must combat a drug syndicate in South America.