The following is a preformatted .CHT file for Code Name: Viper on Nintendo Entertainment System (NES). These files have been collected from around the web and may not be all inclusive. Be sure to check the code pages and other preformatted files, if applicable, for additional codes if what you are looking for is not included.

You can also use the codes out of this file manually on the appropriate device or software.

cheats = 56

cheat0_desc = "Have All Adults/Children Rescued"
cheat0_code = "0757:FF"
cheat0_enable = false

cheat1_desc = "Have All Adults Rescued"
cheat1_code = "06EC:09"
cheat1_enable = false

cheat2_desc = "Have All Children Rescued"
cheat2_code = "06EA:09"
cheat2_enable = false

cheat3_desc = "Infinite lives"
cheat3_code = "SZOVKNVK"
cheat3_enable = false

cheat4_desc = "Start with 1 life"
cheat4_code = "PENTAGLA"
cheat4_enable = false

cheat5_desc = "Start with 6 lives"
cheat5_code = "TENTAGLA"
cheat5_enable = false

cheat6_desc = "Start with 9 lives"
cheat6_code = "PENTAGLE"
cheat6_enable = false

cheat7_desc = "Start with double usual bullets"
cheat7_code = "GTETLIZL"
cheat7_enable = false

cheat8_desc = "Start with half usual bullets"
cheat8_code = "PPETLIZU"
cheat8_enable = false

cheat9_desc = "Double usual bullets on new life"
cheat9_code = "GTOVEYZL"
cheat9_enable = false

cheat10_desc = "Half bullets on new life"
cheat10_code = "PPOVEYZU"
cheat10_enable = false

cheat11_desc = "Start with machine gun and 256 bullets"
cheat11_code = "VVNVGKSE"
cheat11_enable = false

cheat12_desc = "Machine gun and 256 bullets on new life"
cheat12_code = "VTOTONSE"
cheat12_enable = false

cheat13_desc = "Infinite machine gun bullets"
cheat13_code = "AAOXLZPA"
cheat13_enable = false

cheat14_desc = "Infinite bullets for your gun"
cheat14_code = "AENXZPPA"
cheat14_enable = false

cheat15_desc = "Upper level jump"
cheat15_code = "SXKEVNOU+ONEOYEXN"
cheat15_enable = false

cheat16_desc = "Keep machine gun after dying"
cheat16_code = "GZOTONSE+GZEVVNSE"
cheat16_enable = false

cheat17_desc = "Infinite energy"
cheat17_code = "STVPVOON+AASOVZPA"
cheat17_enable = false

cheat18_desc = "Infinite Energy"
cheat18_code = "SZVOSOSE"
cheat18_enable = false

cheat19_desc = "Invincibility"
cheat19_code = "SZSSGIAX"
cheat19_enable = false

cheat20_desc = "Infinite Energy"
cheat20_code = "06F8:04"
cheat20_enable = false

cheat21_desc = "Infinite Gun"
cheat21_code = "06E0:63"
cheat21_enable = false

cheat22_desc = "Infinite Machine Gun"
cheat22_code = "06E2:63"
cheat22_enable = false

cheat23_desc = "Hit Anywhere"
cheat23_code = "SZOOKKSU+APOOSGLA+GLXPEGLP+AASIVEAL"
cheat23_enable = false

cheat24_desc = "Have Bomb"
cheat24_code = "AEESIIGA"
cheat24_enable = false

cheat25_desc = "Infinite Lives"
cheat25_code = "06AA:09"
cheat25_enable = false

cheat26_desc = "Infinite Health"
cheat26_code = "06F8:02"
cheat26_enable = false

cheat27_desc = "Infinite Time"
cheat27_code = "06E6:DF"
cheat27_enable = false

cheat28_desc = "Infinite Continues"
cheat28_code = "0756:09"
cheat28_enable = false

cheat29_desc = "Infinite Bullets"
cheat29_code = "06E0:2E"
cheat29_enable = false

cheat30_desc = "Fake Bullets Modifier (Ten's Digit)"
cheat30_code = "06B1:00"
cheat30_enable = false

cheat31_desc = "Fake Bullets Modifier (One's Digit)"
cheat31_code = "06B2:00"
cheat31_enable = false

cheat32_desc = "Max Score (Ones)"
cheat32_code = "06BE:09"
cheat32_enable = false

cheat33_desc = "Max Score (Tens)"
cheat33_code = "06BD:09"
cheat33_enable = false

cheat34_desc = "Max Score (Hundreds)"
cheat34_code = "06BC:09"
cheat34_enable = false

cheat35_desc = "Max Score (Thousands)"
cheat35_code = "06BB:09"
cheat35_enable = false

cheat36_desc = "Max Score (Hundred-Thousands)"
cheat36_code = "06BA:09"
cheat36_enable = false

cheat37_desc = "Max Score (Million)"
cheat37_code = "06B9:09"
cheat37_enable = false

cheat38_desc = "Max Score (Billions)"
cheat38_code = "06B8:09"
cheat38_enable = false

cheat39_desc = "Infinite Lives (Alternate Code)"
cheat39_code = "06E8:0A"
cheat39_enable = false

cheat40_desc = "Max High Score"
cheat40_code = "008D:09"
cheat40_enable = false

cheat41_desc = "Max High Score"
cheat41_code = "008C:09"
cheat41_enable = false

cheat42_desc = "Max High Score"
cheat42_code = "008B:09"
cheat42_enable = false

cheat43_desc = "Max High Score"
cheat43_code = "008A:09"
cheat43_enable = false

cheat44_desc = "Max High Score"
cheat44_code = "0089:09"
cheat44_enable = false

cheat45_desc = "Max High Score"
cheat45_code = "0088:09"
cheat45_enable = false

cheat46_desc = "Max High Score"
cheat46_code = "0087:09"
cheat46_enable = false

cheat47_desc = "Have Grenade"
cheat47_code = "06EE:01"
cheat47_enable = false

cheat48_desc = "Have Gun Ammo"
cheat48_code = "06E1:03"
cheat48_enable = false

cheat49_desc = "Have Machine Gun Ammo"
cheat49_code = "06E3:03"
cheat49_enable = false

cheat50_desc = "Infinite Machine Gun Ammo"
cheat50_code = "06E2:E7"
cheat50_enable = false

cheat51_desc = "Levitate Jump"
cheat51_code = "040B:70"
cheat51_enable = false

cheat52_desc = "No Enemies"
cheat52_code = "0352:00+0382:00+03B2:00"
cheat52_enable = false

cheat53_desc = "Shot Lots Of Bullets When Jumping"
cheat53_code = "EIOOYPEY"
cheat53_enable = false

cheat54_desc = "Don't Fall Straight Down After Walking Off Of A Ledge"
cheat54_code = "ESKOZPEY"
cheat54_enable = false

cheat55_desc = "Shots Pierce Through Enemies"
cheat55_code = "AASIVEAL"
cheat55_enable = false