Code Name: Viper
1990 video game
Code Name: Viper, known in Japan as Ningen Heiki Dead Fox, is an action-platform video game developed by Arc System Works and published 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.
Plot
The player takes the role of Kenny Smith, code name "Viper", an agent of the 98th Special Forces. He is assigned by his superior, Commander Jones, to investigate a large drug syndicate that covers most of South America (Venezuela, Brazil, Chile, Peru, Paraguay, Argentina, Bolivia). Smith's objective is to rescue a missing agent in each of the syndicate's seven hideouts and uncover clues of the Syndicate's true mastermind.
Gameplay
The gameplay system is similar to Namco's 1986 arcade game Rolling Thunder, specifically its own NES version. Like in Rolling Thunder, the player can jump or drop down between floors by holding the directional pad up or down and pressing the jump button, as well as enter doors to obtain power-ups or avoid enemies. The player can be armed with one of two weapons (a standard issue pistol or a fully automatic machine gun for continuous firepower). Items includes additional ammunition for either weapon, extra health, a time extension, and extra lives. Unlike Rolling Thunder, the player can shoot while jumping and can also change directions during midair.
The public source identifies “Code Name: Viper” as 1990 video game. This brief keeps that definition visible, then builds a research path around Code, Name and Viper.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Apr 25, 2026. The linked authority identifier is Q5960864. 1 of 2 selected statements include explicit references; 2 carry qualifiers and 0 use preferred rank. The first chronological checks are 1990 and 1986.
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This entry incorporates text from “Code Name: Viper” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.