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.

This hack is created for new gameplay experience in every level, Enemy positions are now changed and rarely used enemies are now used in more frequently, enemies now have advantage so play carefully to beat them. Color theme is also changed in every level.
This is a bit harder than the original game but still easy for those who played original game many times!!

Database match: Code Name - Viper (USA)
Database: No-Intro: Nintendo Entertainment System (v. 20210216-231042)
File SHA-1: 2E8A5923516FDBD110DD328661072E8D3C026601
File CRC32: 3F39F35C
ROM SHA-1: 220939191A48FB2CF3A73C8FD713A60AD2EE34DF
ROM CRC32: E2313813