Super Mario Bros 3
NES platformer · Free browser emulator · Mobile & desktop
Play Super Mario Bros 3 in your browser with a WebAssembly NES emulator. Explore the world map, power suits, and airships with keyboard, touch, or gamepad.
Powered by EmulatorJS (WebAssembly NES core). On phones, rotate to landscape for the largest playfield and the on-screen controller.
Tap Play in the player to start. On phones and tablets, EmulatorJS shows an on-screen D-pad and A/B buttons after start. On desktop, use the keyboard map below.
How To Play
Super Mario Bros 3 is the landmark NES sequel with a board-game world map, suit power-ups (Raccoon, Tanooki, Frog, Hammer), inventory items, and airship boss stages. Race through eight worlds, collect cards for 1-Ups, and chase Bowser across the kingdom.
This page embeds EmulatorJS with the fceumm NES WebAssembly core. Tap Play to load the ROM, then use keyboard on desktop or the on-screen D-pad and A/B buttons on mobile. Save states in the toolbar help with longer runs.
Controls
These are EmulatorJS default mappings (same defaults as emubrowser). Open the in-player settings gear to rebind keys or show/hide the virtual gamepad.
Touch
- Tap Play to start the emulator.
- Use the on-screen D-pad (left) to move and navigate levels.
- Tap A for jump / primary action and B for run / secondary action.
- Use Start to pause and Select for menus or inventory.
- Toggle the virtual gamepad from the emulator toolbar if it is hidden.
Mouse / Gamepad
- Click Play to start, then use the emulator toolbar for mute, fullscreen, save states, and settings.
- A USB or Bluetooth gamepad works through the browser Gamepad API once connected.
Keyboard
- Arrow keys — D-pad (move / crouch / map)
- Z — A (jump / fly with leaf)
- X — B (run / fireball / hold items)
- Enter — Start (pause / start)
- V — Select (inventory with power-ups)
| NES action | Keyboard | In Super Mario Bros 3 |
|---|---|---|
| D-pad | ↑↓←→ | Move / crouch / enter pipes / map |
| A | Z | Jump / fly (with leaf) |
| B | X | Run / fireball / hold items |
| Start | Enter | Pause / start |
| Select | V | Inventory (with suit power-ups) |
Touch devices
Yes — it works on phones and tablets. EmulatorJS ships a built-in virtual gamepad that appears on touch browsers after the game starts. You get an on-screen D-pad plus A, B, Start, and Select. A custom D-pad overlay is not required.
Physical Bluetooth gamepads also work through the browser Gamepad API. If the virtual pad is hidden, use the gamepad icon in the emulator toolbar to toggle it.
More Super Mario Bros
Play the full NES trilogy: Super Mario Bros and Super Mario Bros 2.
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