Code Name Viper is an action game released for the NES in the USA. Specific details regarding its development history and original publishers may require further research in gaming archives.  Gameplay likely involves action-oriented missions with strategic elements and possibly stealth components given the name. The title suggests a military or spy theme, with player controlling a character (likely a spy or special forces operative) undertaking dangerous missions.  More details on the game's reception and the company behind its creation are needed for a complete overview.

Code Name - Viper (USA)

Cocona World (Japan)