Metal Gear Cheats & Cheat Codes for MSX and NES

The title screen of the japanese version of Metal Gear.

Metal Gear Cheats & Cheat Codes for MSX and NES

Metal Gear is a franchise of stealth games developed by the ever-prolific Hideo Kojima. The first title was released in 1987 for the MSX home computer. The series is known for pioneering the genre. Originally, Metal Gear was supposed to be an action game but Kojima thought the limitations with the hardware were too much to overcome. So the game became something akin to hide and seek which was unique for games at the time.

©Shoot Gunner Metal Gear EU – License

The Premise Of Metal Gear

You control the military operative Solid Snake who infiltrates enemy bases while avoiding patrolling guards. If the player is seen, the game enters “Alert Mode” where you must escape the enemy’s sight. If Snake is seen and only a single exclamation mark appears over an enemy’s head, only the enemies in the player’s present screen will attack. Snake can escape by simply moving to an adjacent screen. If two exclamation marks appear over the enemy reinforcements from off-screen will appear as well. Snake can only escape by eliminating all incoming enemies, going outdoors, entering an elevator, or entering a boss battle.

The Main Characters Of Metal Gear

  • Solid Snake – a rookie member of the special forces group FOXHOUND sent on his first mission.
  • Big Boss – commanding officer of Snake, he gives information about mission objectives and items.
  • Diane – a former positive punk vocalist who provides information on the enemy forces from her home.
  • Jennifer – infiltrates Outer Heaven’s medical staff to find her missing brother and assists Snake as an inside agent.
  • Grey Fox – a FOXHOUND agent who was captured during a previous mission.
  • Dr Pettrovich – a robotic engineer working for Outer Heaven against his will.

Other Titles In The Series

  • Metal Gear
  • Metal Gear 2: Solid Snake
  • Metal Gear Solid
  • Metal Gear Solid 2: Sons of Liberty
  • Metal Gear Solid 3: Snake Eater
  • Metal Gear Solid 4: Guns of the Patriots
  • Metal Gear Solid Delta: Snake Eater
  • Metal Gear Solid HD Collection
  • Metal Gear Solid V: Ground Zeroes
  • Metal Gear Solid V: The Phantom Pain
  • Metal Gear Solid: Master Collection
  • Metal Gear Solid: Peace Walker
  • Metal Gear Solid: The Legacy Collection
  • Metal Gear Solid: The Twin Snakes

Metal Gear Cheats

End Game Password

Begin at the end of the game with the timer running“F-word”METILL rest all i’s

Hidden Passwords

To use the following passwords, pause the game enter one of the following passwords and then unpause to make them work.

All-access code. Gives you all eight keycardsHIRAKE GOMA
Allows you to carry an almost unlimited ammount of ammo and explosivesINTRUDER
Allows you to carry up to 999 rationsISOLATION
Get promoted to an extra rankDS 4
Means ”You’re the best”. Gets you promoted to a four-star rankANTA WA ERAI

NES Passwords

All Weapons and Items21Z1C GZZZG UOOOU UYRZZ NTOZ3
Cell, countdown startedGMMMM MMMMM MMMMM MMMMM MMMMM
Cell, no equipment when you recover2511C 11111 11111 11111 K1115
Cell, Only Card#3 when you recover.21111 15111 11111 11111 K111W
Cell, Only Card#3 when you recover. Timer started Final Boss deadT1111 15111 11111 11111 K111O
Enter the last part of the game unequipped“F-word”ME and the rest are all 1’s
Final boss is dead, but you only are rank 1, with no weaponsT1111 11611 11111 11111 11116
The final boss is dead, but you only are rank 1, with no weaponsELLEN DIANE JENNI FERBI GBOSS
The final stage, but with few weapons and items. Still need to fight the final boss.WZRJZ QZZZD UJ51O UIQZZ NZRZE
Start a New Game With a Four Star Rank511111111111111111111111F
Start as a 4-star general With some other items51222 22222 22222 22222 22222
Start at the final area with All Equipment (including All Key Cards)/All Weapons (full ammo)/Four Star Rank/Final Boss DefeatedWZZZZ YZZZZ UOOOU UYRZZ VZZZK
Start the game at the jail with All Equipment (except Key Card #3)/All Weapons (full ammo)/Four Star Rank5LZLL LVZZZ UOOOU UORTZ TTTZZ
Start a new game with All Equipment (including All Key Cards)21111 1ZZZZ 11111 111SS S1SRV
Start a new game with All Equipment (including All Key Cards)/All Weapons (full ammo)21Z11 1ZZZZ UOOOU UYRSZ KSSZT
Start a new game with All Equipment (including All Key Cards)/All Weapons (full ammo)/Four Star Rank5ZZZZ YZZZZ UOOOU UYRZZ VZZZS
Start a new game with All Equipment (including All Key Cards)/Four Star Rank51111 1ZZZZ 11111 111SS K1SRQ
Start a new game with All Key Cards21111 1Z111 11111 11111 111BI
Start a new game with All Weapons (full ammo)21Z11 11211 UOOOU UYR1B 1S1CJ
Start a new game with All Weapons (full ammo)/Four Star Rank51Z11 11211 UOOOU UYR1B 1S1CM
Unlock Every Weapon and Piece of Equipment5ZZZJ UZZJG 1CO3U UYRZR RPRZF
Warp to Big Boss with more than the 9 required rocket launchers to defeat himDIANE JENNY SOLID SNAKE 12345

Metal Gear Glitches

Pass Electric Fields In MSX Version

To pass through electric fields without taking any damage, press F1 to pause the game, then F4 to enter the Load screen then press ESC to leave it, and press F1 to unpause.

Infinite Items

To get infinite expendable items, first, pick up the item, then press F1 to pause the game, then F4 to enter the Load screen then press ESC to leave it, and press F1 to unpause. If done right, the item will appear once again for you to pick up.

Nes Glitches

Timer Reset

When you escape the Final Level have your character smoke a cigarette and the time will be reset.

Tank Fight Skip

There are two ways to skip the tank fight. The first way is a bit harder than the second, go inside your inventory, unpause to go back to the game, then quickly hold UP to move up some, then quickly go back into your weapons or inventory, and repeat all steps until you slowly inch your way up to the next screen.

The second way is to get close to the tank and as soon as the tank shoots you, you become invincible for almost 2 seconds. As soon as you get shot quickly run straight up to the top of the screen, allowing you to walk through the Tank to the next screen.

Super Computer Skip

When entering the Super Computer’s room, stay in the door frame and push right on the control pad. You’ll automatically warp to the final boss and won’t have to worry about the base’s self-destruct countdown that the computer’s destruction usually starts. Now you have all the time you need to beat the last boss.

Expanding Hole In Floor Skip

In the areas where the black holes quickly open up to swallow you just simply pause the game and unpause. When you return to game play the holes will be frozen in the state of expansion they were in when you paused. They will be invisible but smaller. Simply side-step around where you saw them last and you will be in the clear.

Bull Tank Exploit

When fighting the Bull Tank you can reset its position by accessing your Sub-menu. This comes in handy if it gets too close, due to it having a 1-touch kill on you. To defeat it, use your Grenade Launcher.

Metal Gear Game Genie Codes

The following code requires the third-party hardware Game Genie. If you’re using an emulator to play Metal Gear then these codes should still work.

Don’t Take Hits From BulletsSZUYPZVG
No Hits Taken In Hand-To-Hand Fights With Most EnemiesSXVTXZVG
Mystery Location 1ZASILYPA
Mystery Location 2GASILYPA
Start With An Energy BoostXZVSAYVZ
Start With A Super Energy BoostXZVSAYVZ
Sleeping Enemies Won’t Wake Up (Might Not Work)AKAAZT
All Times Are In The Inventory But Cannot Use ThemAOSZUIEL
Don’t Start With CigarettesPOSZIEL
Jukebox (Make The First 2 Digits By Yourself)??POZV
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