Code Name: Viper is an action platformer game for the Nintendo Entertainment System.

Originally released in Japan as Ningen Heiki: Dead Fox, the game consists of destroying the drug syndicate located in South America. The player is called Kenny Smith or known as Mr. Smith (the game) which is sent by Commander Jones in order to rescue the civilian hostages and an agent who has information about the author who smuggles the drugs and also It gives you a bomb to go to the next level. You must go through the 7 hiding places of the great drug traffic. As you save the wounded agents, it will give you clues about the real author and kill him.

In the original Code Name: Viper, the main character looks like he isn't wearing anything below the waist except his shoes, due to the fact his trousers are the same colour as his skin. This modification changes it so that his trousers match the rest of his combat gear.

This download contains patches for both the American and Japanese versions.

No-Intro Name: Code Name - Viper (USA)
(No-Intro version 20130731-235630)
File SHA-1: 3F7428865EA2E95632E32E8C3638207FED12BB52
ROM SHA-1: 220939191A48FB2CF3A73C8FD713A60AD2EE34DF

No-Intro Name: Ningen Heiki - Dead Fox (Japan)
(No-Intro version 20130731-235630)
File SHA-1: 650CD4D1631E94A1321A256B240AD4D7D47533E1
ROM SHA-1: 572F719D09C6538477AF240C81950D43B133C480