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Mega Man 3
洛克人：3
Mega Man 3 is a side-scrolling action game developed by Capcom in 1990 for the NES. Players control the robot Mega Man as he battles eight robot masters, each with unique weapon abilities that players acquire upon defeat. The core gameplay involves platforming through stages while fighting enemies and bosses. After defeating all eight masters, players advance to Wily's Castle stages with increased difficulty. The game features a non-linear stage select system, allowing players to choose which robot master to fight in any order. Controls are responsive with directional pad movement, button-based jumping and shooting. Mega Man can switch between his standard arm cannon and acquired weapons to exploit boss weaknesses. Each weapon has limited ammunition that gradually depletes, forcing strategic use. The challenging difficulty and precise platforming requirements define the experience.
- Developer
- Capcom
- Released
- 1990
- Platform
- NES
- Genre
- Action
- Players
- 1P
- Rating
- 4.5 / 5 (6.3K)
- Last updated
Mega Man 3 Controls — NES Keyboard Keys
Default keyboard bindings for Mega Man 3 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.
Mega Man 3 Longplay & Gameplay Videos
Watch a full playthrough of Mega Man 3 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
"Mega Man 3" NES longplay 1990
Mega Man 3 Cheat Codes
30 community-curated cheats for Mega Man 3. Tick any to activate them automatically when you click "Play with cheats" — or copy a code into your own emulator.
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Wrap Around To The Top When You Fall Down A Bottomless Pit
AVUNLNOG -
Wrap Around To The Bottom When You Jump Through The Top Of The Screen
AVSNINOT -
Walk Through Walls To The Left
ATEYPTAZ -
Walk Through Walls To The Right
AVUNYIAZ -
Jump Through Roof
AVNNATAZ -
Scrolling Doesn't Stop
SPKESEPZ -
Infinite Energy (Invincibility)
XXVKGAEP -
Start With Infinite E-Tanks
NXVKGAEONXTKGE -
Start With Infinite Magnet Missile
VXVKGAEP -
Start With Infinite Snake Search
EXVKGAEO -
Start With Infinite Hard Knuckle
SXVKGAEP -
Start With Infinite Shadow Blade
KXVKGAEO
Show 18 more cheats Show fewer
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Start With Infinite Rush Marine
UXVKGAEO -
Start With Infinite Needle Cannon
KXVKGAEP -
Start With Infinite Top Spin
NXVKGAEP -
Start With Infinite Spark Shock
XXVKGAEO -
Start With Infinite Gemini Laser
UXVKGAEP -
Infinite Weapon Energy
GXNIVVOO -
Start With Mega Speed
YAKGNIPA -
You Can Slide Forever
YNXSTLGO -
When You Jump From R Coil, You Can Keep Calling Rush While You're In Mid-Air
SXLILP -
The screen scrolls while Paused and doesn't stop
SNTKGA -
The screen scrolls while Paused and doesn't stop 2
SNTKGA -
No enemies
VOVKGAEONYPKEU -
Start The Game Fighting Protoman, Then You'll Start On The 1st Stage of Dr. Wily With All Weapons
IENGSEPA -
Play the Game in Black and White
OXXKZASX+POXKLEVN -
Title Screen Music Plays Throughout the Game
SXXNVASA -
Instead Of Gemini's Clone Disappearing From Having No Health, It Acts Independantly From Gemini Man For A Better Boss Fight
SLEXGNSO -
Infinite Lives
VXTKGEAEEGXLPASXEGSLSA+2
External references
Frequently Asked Questions
When was Mega Man 3 released?
Mega Man 3 was released in 1990 for the NES.
Who developed Mega Man 3?
Mega Man 3 was developed by Capcom, available to play in your browser on RetroGameSpace.
How many players does Mega Man 3 support?
Mega Man 3 is a single-player Action game for the NES.
What type of game is Mega Man 3?
Mega Man 3 is a Action game for the NES, playable instantly in your browser — no downloads, no installs.
How can I play Mega Man 3 for free?
Open this page and click "Play Now" — Mega Man 3 runs free in your browser via WebAssembly emulation. No account, no payment, no installer.
Do I need to download anything to play Mega Man 3 in the browser?
No. Mega Man 3 streams from a public archive into a browser-side NES emulator. Nothing is installed on your computer.
Can I save my progress in Mega Man 3?
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 Mega Man 3 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 Mega Man 3 this way?
RetroGameSpace is a transient caching reverse-proxy and does not host first-party copies of Mega Man 3. 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.
