The following is a preformatted .CHT file for Contra 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 = 61

cheat0_desc = "Totally Invincible P1"
cheat0_code = "00AE:41"
cheat0_enable = false

cheat1_desc = "Infinite Lives P2"
cheat1_code = "0033:09"
cheat1_enable = false

cheat2_desc = "Enable 30 Lives Option"
cheat2_code = "0024:01"
cheat2_enable = false

cheat3_desc = "Weapon Modifier P2"
cheat3_code = "00AB:00"
cheat3_enable = false

cheat4_desc = "Start New Life With Fireball Gun"
cheat4_code = "ZEIIXZ"
cheat4_enable = false

cheat5_desc = "When You Die You Get An Extra Life"
cheat5_code = "NYAIUZ"
cheat5_enable = false

cheat6_desc = "Tons Of Points For Shooting Enemies"
cheat6_code = "SXZGYK"
cheat6_enable = false

cheat7_desc = "1st Boss Harder To Kill"
cheat7_code = "EPTILE"
cheat7_enable = false

cheat8_desc = "When The Bridge Explodes, You Can Still Walk On It"
cheat8_code = "EOGKPN"
cheat8_enable = false

cheat9_desc = "Weapon Capsules Fly By Slower"
cheat9_code = "OIGEAU"
cheat9_enable = false

cheat10_desc = "Bullets Will Travel Thru Weaker Enemies"
cheat10_code = "KOYVAL"
cheat10_enable = false

cheat11_desc = "Your Bullets Will Auto-Hit Any Enemy"
cheat11_code = "KOYTAK"
cheat11_enable = false

cheat12_desc = "Kill Any Enemy Or Boss With 1 Shot (Except For Base 1 And 2 Bosses)"
cheat12_code = "KOYTAL"
cheat12_enable = false

cheat13_desc = "Characters Can Walk On Water"
cheat13_code = "SLPVIA"
cheat13_enable = false

cheat14_desc = "Removes Lifebar Indicators"
cheat14_code = "GOTGET"
cheat14_enable = false

cheat15_desc = "Play Game In Black And White Mode"
cheat15_code = "OZNKTASX+YPNKYEVN"
cheat15_enable = false

cheat16_desc = "P1 And P2 Start With 30 Lives"
cheat16_code = "IPVGZGZE"
cheat16_enable = false

cheat17_desc = "P1 And P2 Has The 30 Lives Cheat Activated"
cheat17_code = "AAVGTGZA"
cheat17_enable = false

cheat18_desc = "Activating The 30 Lives Cheat Gives You 99 Lives"
cheat18_code = "LTVKAKIP"
cheat18_enable = false

cheat19_desc = "Start with infinite lives"
cheat19_code = "SLAIUZ"
cheat19_enable = false

cheat20_desc = "Keep weapons after losing a life"
cheat20_code = "GXIIUX"
cheat20_enable = false

cheat21_desc = "Become invincible (enemies don't shoot at you)"
cheat21_code = "SLTIYG"
cheat21_enable = false

cheat22_desc = "Start new life with machine gun"
cheat22_code = "PEIIXZ"
cheat22_enable = false

cheat23_desc = "Start new life with spread gun--DON'T USE CODE 6 WITH CODE 1 AND 2"
cheat23_code = "LEIIXZ"
cheat23_enable = false

cheat24_desc = "Start new life with laser"
cheat24_code = "GEIIXZ"
cheat24_enable = false

cheat25_desc = "Infinite Lives"
cheat25_code = "SZEIUZVI"
cheat25_enable = false

cheat26_desc = "Invincibility"
cheat26_code = "SXKVPZAX"
cheat26_enable = false

cheat27_desc = "Start On Level Modifier"
cheat27_code = "PANGIGAA+ALNKPKYL"
cheat27_enable = false

cheat28_desc = "Jump In Midair"
cheat28_code = "AZNITGSL+NPNIYGEU+VINSAGEY+XTNSPKAE+SUEIAGVI+SUVSOPSP+ATKSZSOZ"
cheat28_enable = false

cheat29_desc = "Hit Anywhere"
cheat29_code = "GZNVYLEL+ESEVALEP+GXXTPLEL+SXKTYLAX"
cheat29_enable = false

cheat30_desc = "Press Select To Change Weapons"
cheat30_code = "GGKIZAKX+ZPKILAIZ+VYKIGAEI+KZOYZVNY+IZOYLVNY+EYOYGVNY+LAOYIVNY+GGOYTVNN+LIOYYVNY+EIONAVNY+PZONPVNN+AZONZVNY+EYONLVNY+TAONGVNN+SZONIVNY+XZONTVNN+PZONYVNN+YAXYAVNY+OGXYPVNN+GAXYZVNY+EIXYLVNY+ZAXYGVNY+OZXYIVNN+PTXYYVNN+PAXNAVNY+SAXNPVNY+XZXNZVNN+SZXNLVNY+SYXNGVNY+GGXNIVNN+TGXNTVNY+EIXNYVNY"
cheat30_enable = false

cheat31_desc = "One Hit Kills"
cheat31_code = "AETVZL+APAXZA+APAEUY"
cheat31_enable = false

cheat32_desc = "Invincible"
cheat32_code = "AAVITGIA"
cheat32_enable = false

cheat33_desc = "Run 2X As Fast"
cheat33_code = "ZASSIYPA+VYVIPNNN"
cheat33_enable = false

cheat34_desc = "Run 4X As Fast"
cheat34_code = "GASSIYPA+KYVIPNNN"
cheat34_enable = false

cheat35_desc = "Turn Off Electric Barrier in Base Areas"
cheat35_code = "ALSKXIEY"
cheat35_enable = false

cheat36_desc = "Press Start to Complete Current Level"
cheat36_code = "LLKSIAIX"
cheat36_enable = false

cheat37_desc = "Jump Higher"
cheat37_code = "XNVSPVUN+UNVSYVKN"
cheat37_enable = false

cheat38_desc = "Shoot Enemies, Literally!"
cheat38_code = "0368:27+0369:27+036A:27+036B:27"
cheat38_enable = false

cheat39_desc = "Alternate Invincible"
cheat39_code = "0090:01"
cheat39_enable = false

cheat40_desc = "Walk On Water"
cheat40_code = "00B2:00"
cheat40_enable = false

cheat41_desc = "Level Modifier"
cheat41_code = "0030:00"
cheat41_enable = false

cheat42_desc = "Invincible"
cheat42_code = "00AE:77"
cheat42_enable = false

cheat43_desc = "Choose Your Weapon! (All Rapid Fire!)"
cheat43_code = "00AA:16"
cheat43_enable = false

cheat44_desc = "Infinite Lives P1"
cheat44_code = "0032:09"
cheat44_enable = false

cheat45_desc = "Invincible P1 (Flashing)"
cheat45_code = "00AE:4D"
cheat45_enable = false

cheat46_desc = "Invincibility (Star Effect) (Player 1)"
cheat46_code = "00B0:FE"
cheat46_enable = false

cheat47_desc = "Invincible P2 (Flashing)"
cheat47_code = "00AF:4D"
cheat47_enable = false

cheat48_desc = "Invincibility (Star Effect) (Player 2)"
cheat48_code = "00B1:FE"
cheat48_enable = false

cheat49_desc = "Kill Any Enemy Or Boss With One Hit, Any Weapon"
cheat49_code = "057D:01+057E:01+057F:01+0580:01+0581:01+0582:01+0583:01+0584:01+0585:01+0586:01+0587:01+0588:01+0589:01+05F5:01+05C7:01"
cheat49_enable = false

cheat50_desc = "Enemies Die Automatically"
cheat50_code = "OZSVALEN+ZGVTAUPZ+AENTPUAA"
cheat50_enable = false

cheat51_desc = "Weapon Upgrades Give An Extra Life"
cheat51_code = "VEVVTXOZ+ZEVVYXZA+ONNTIZEZ"
cheat51_enable = false

cheat52_desc = "Keep Weapon After Dying"
cheat52_code = ""
cheat52_enable = false

cheat53_desc = "Get Weapon Upgrades From Anywhere"
cheat53_code = "AISVZZEP"
cheat53_enable = false

cheat54_desc = "Start New Life With Spread Gun (6 to 8 character conversion)"
cheat54_code = "LESIXZAA"
cheat54_enable = false

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

cheat56_desc = "Skip Title Screen Scroll"
cheat56_code = "AANKTZPL"
cheat56_enable = false

cheat57_desc = "DPCM Pop Reducer"
cheat57_code = "SUKAKESE"
cheat57_enable = false

cheat58_desc = "Start With Super Body"
cheat58_code = "ELUSIIEG"
cheat58_enable = false

cheat59_desc = "Start with over175 Lives"
cheat59_code = ""
cheat59_enable = false

cheat60_desc = "Difficulty Modifier"
cheat60_code = "0031:02"
cheat60_enable = false