Play Code Name: Viper emulator game online in the highest quality available. Code Name: Viper is a Nintendo game that you can enjoy on Play Emulator. This NES game is the US English version that works in all modern web browsers without downloading. Code Name: Viper is part of the Arcade Games, Action Games, and Platform Games you can play here. PlayEmulator has many online retro games available including related games like Another Code: Two Memories, Armorines: Project S.W.A.R.M, and Capcom Sports Club.