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Metal Gear
合金装备
Metal Gear is a stealth-action game developed by Konami and released in 1988. Players control Solid Snake as he infiltrates a heavily guarded nuclear weapons facility to halt a rogue FOXHOUND unit. The gameplay emphasizes tactical infiltration over direct combat, rewarding stealth and careful movement. Snake can equip various weapons and items, from handguns to rocket launchers, while also employing non-lethal approaches. The game features multiple enemy types with increasing intelligence and formidable boss encounters. Level design progresses through interconnected areas requiring navigation past guards and security systems. Combat relies on action-based controls allowing precise aiming and movement. The NES release includes a password system for progress saving. Through its blend of action sequences, strategic planning, and cinematic storytelling elements, Metal Gear delivers a unique experience that diverges from typical action games of its era.
- Developer
- Konami
- Released
- 1988
- Platform
- NES
- Genre
- Action
- Players
- 1P
- Rating
- 4.3 / 5 (2.3K)
- Last updated
Metal Gear Controls — NES Keyboard Keys
Default keyboard bindings for Metal Gear on our in-browser NES emulator. Plug in a USB or Bluetooth gamepad to auto-detect mappings, or rebind any key from the emulator settings menu.
| Keyboard | Console button | Typical use |
|---|---|---|
| ↑ | D-Pad Up | Move up |
| ↓ | D-Pad Down | Move down |
| ← | D-Pad Left | Move left |
| → | D-Pad Right | Move right |
| X | A | Primary action (jump / confirm) |
| Z | B | Secondary action (attack / cancel) |
| Enter | Start | Start / Pause |
| Shift | Select | Select / Mode |
Rebind any key from the EmulatorJS in-game settings menu (gear icon → Controls). A connected gamepad auto-maps to the same buttons.
Metal Gear Longplay & Gameplay Videos
Watch a full playthrough of Metal Gear on NES before you dive in — recommended for getting a feel for the game's pacing, story beats, and difficulty curve.
Watch longplay on YouTube
"Metal Gear" NES longplay 1988
Metal Gear Cheat Codes
30 community-curated cheats for Metal Gear. Tick any to activate them automatically when you click "Play with cheats" — or copy a code into your own emulator.
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Start With An Energy Boost
XZVSAYVZ+PAVSPNTT+AEKSZYIE -
Start With A Super Energy Boost
XZVSAYVZ+PAVSPNTT+GEKSZYIE -
Sleeping Enemies Won't Wake Up [Might Not Work]
AKAAZT -
All Times Are In The Inventory But Cannot Use Them
AOSZUIEL -
Don't Start With Cigarettes
POSZUIELPOSZIEL -
Have All Equipment
0075:FF+0076:FF+0077:FF+0078:0C -
Infinite Handgun Ammo
0079:FASZSVVYVG -
Infinite Mines
007A:14KXEVUTKA -
Infinite Explosives
007B:14VXXVETVA -
Infinite Machine Gun Ammo
007D:FASZKVXYVG -
Infinite Grenades
007E:3CKZEVXYKA -
Don't take hits from bullets
SZUYPZVG
Show 18 more cheats Show fewer
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No hits taken in hand-to-hand fights with most enemies
SXVTXZVG -
Mystery location 1
ZASILYPA -
Mystery location 2
GASILYPA -
Infinite Health
SXVTXZVG+SZUYPZVG006D:10 -
Invincible against Gas
SXELYGVG -
Invincible against Electrified Floors
SZSUVZVG -
Infinite Rations
SXXXETVG -
Have Some Equipment when you enter Equipment Inventory
NNSZOIAE -
Have All weapons when you enter Weapon Inventory
OZSXKGXX+NYSXSGAE+SASXVGSZ -
Infinite Missiles
VXVVKTVA007C:14 -
Infinite Rockets
VXKVNTVA007F:1E -
Max & Infinite energy
006D:10 -
Weapon in hand modifier
003B:00 -
Equipment in hand modifier
003A:00 -
Rank modifier
006E:00 -
Enemies Don't Attack/Chase You
SLNIUGSP -
Hit Anywhere Punch
AAETIUUT+AAOVPLNI+ASVVYZEP+AAOTPUNI -
Hit Anywhere Weapons
AISNYZEY
External references
Frequently Asked Questions
When was Metal Gear released?
Metal Gear was released in 1988 for the NES.
Who developed Metal Gear?
Metal Gear was developed by Konami, available to play in your browser on RetroGameSpace.
How many players does Metal Gear support?
Metal Gear is a single-player Action game for the NES.
What type of game is Metal Gear?
Metal Gear is a Action game for the NES, playable instantly in your browser — no downloads, no installs.
How can I play Metal Gear for free?
Open this page and click "Play Now" — Metal Gear runs free in your browser via WebAssembly emulation. No account, no payment, no installer.
Do I need to download anything to play Metal Gear in the browser?
No. Metal Gear streams from a public archive into a browser-side NES emulator. Nothing is installed on your computer.
Can I save my progress in Metal Gear?
Yes. Save states are stored in your browser (IndexedDB) per game, and you can also use any in-game save the original NES cartridge supported.
Does Metal Gear work on mobile devices?
Yes — the NES emulator runs on iOS Safari and Android Chrome. Touch controls overlay the game; landscape mode is recommended.
Is it legal to play Metal Gear this way?
RetroGameSpace is a transient caching reverse-proxy and does not host first-party copies of Metal Gear. Game files are fetched on demand from publicly-accessible archives. You are responsible for compliance with your local laws and the bring-your-own-ROM principle.
