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Important Control Tip： If keys are unresponsive after the game loads, please [click on the game window] to activate input focus. It is recommended to switch to an English input method for the best control response.
How to Play
PC & Laptop Controls
| Action | Key (Default) | Description |
|---|---|---|
| D-Pad | ↑↓←→ | Movement control |
| A Button | Z | Confirm / Attack |
| B Button | X | Cancel / Jump |
| X Button | A | SNES/GBA only |
| Y Button | S | SNES/GBA only |
| L (Left Shoulder) | Q | Left shoulder button |
| R (Right Shoulder) | E | Right shoulder button |
| L2 (Left Trigger) | Tab | Left trigger button |
| R2 (Right Trigger) | R | Right trigger button |
| Select | V | Select button |
| Start | Enter | Start button |
After the game loads, you can view the specific key mappings through 'Control Settings'. We also support custom keyboard mapping.
📱 iPhone & Android Controls
Use the touchscreen virtual buttons. The D-pad is on the left side, and action buttons are on the right. Works perfectly on Safari, Chrome, and other modern browsers.
🎮 Physical Gamepad Support
This site supports Xbox, PS4/PS5, Switch Pro and various universal Bluetooth gamepads. Simply connect your gamepad to your device and it will be automatically detected. You can check gamepad connection status, player assignment in multiplayer mode, and remap buttons through 'Control Settings'. If your gamepad is not detected, please refresh the page.
About This Game
🎮 Play Super Mario Bros. Online for Free
Display Filters
Multiple optional CRT-style rendering effects (such as CRT Geometry, CRT Raster, SABR, etc.) to simulate the visual characteristics of traditional displays, helping restore the classic pixel art display style. Effects can be enabled or disabled as needed.
Cheat Codes Support
Built-in optional cheat management for testing, exploring, or assisted gameplay in the local emulation environment. This feature is optional and does not affect normal gameplay.
Multi-Device Control Center
Supports keyboard, touchscreen, and physical gamepads (Xbox, PS4/PS5, Switch Pro). Customize key mappings and switch control modes seamlessly across all your devices.
Highlight Capture
Built-in one-click screenshot and screen recording features, allowing you to capture and share your gaming achievements at any time.
🎮 Play Super Mario Bros. Online for Free
Start your retro journey with Super Mario Bros. right in your browser. This site is optimized for compatibility and performance across popular platforms including iPhone (Safari), Android (Chrome), Mac, and PC, ensuring a stable gaming experience across different device browsers. Built on mature WebAssembly technology combined with WebGL2 hardware acceleration to enhance rendering efficiency during emulation. On compatible devices, users can enjoy stable visuals and smooth gameplay. No downloads or plugins required — play directly in your browser. Additionally, cloud save and load support is available to sync your game progress across different devices or sessions, ensuring none of your progress is ever lost.
🎮 Play Super Mario Bros. Online for Free
Start your retro journey with Super Mario Bros. right in your browser. This site is optimized for compatibility and performance across popular platforms including iPhone (Safari), Android (Chrome), Mac, and PC, ensuring a stable gaming experience across different device browsers. Built on mature WebAssembly technology combined with WebGL2 hardware acceleration to enhance rendering efficiency during emulation. On compatible devices, users can enjoy stable visuals and smooth gameplay. No downloads or plugins required — play directly in your browser. Additionally, cloud save and load support is available to sync your game progress across different devices or sessions, ensuring none of your progress is ever lost.