Code Name: Viper (NES) Longplay

Code Name: Viper, known as Ningen Heiki: Dead Fox in Japan, is an action platformer game made for the NES in 1989, and 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.
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PLOT
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Ken Smith is a special agent. Commander Jones sends him to South America to take down a drug cartel and rescue kidnapped hostages.
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GAMEPLAY
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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.
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Timecode:
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00:00 Intro
00:49 Stage 1
04:32 Stage 2
08:23 Stage 3
12:44 Stage 4
17:59 Stage 5
22:51 Stage 6
26:30 Stage 7
30:26 Stage 8
33:05 Final boss / Ending