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Play Mega Man III (Sample · US edition · English) Online
Mega Man III
Play Mega Man III online for Game Boy. Dr. Wily has seized an offshore oil platform, sending Mega Man into another mission against his Robot Masters. Charge the Mega Buster or slide beneath obstacles while searching for a useful weapon order.
Browser play
Game Boy (GB) — EmulatorJS controls
Default Player 1 keyboard mapping. Change keys in Controller Settings.
| Console button | Keyboard |
|---|---|
| ↑ / ↓ / ← / → | ↑ / ↓ / ← / → |
| A / B | Z / X |
| START / SELECT | Enter / V |
Open Controller Settings to configure your keyboard or gamepad. Touch controls are available on mobile.
How to Play Mega Man III
Quick start
Press START and choose a boss portrait with the D-pad, then confirm with A. Practise the basic weapon before committing to a jump; use the equipment menu to try newly acquired weapons.
Controls
D-pad: move; A: jump; B: fire; B: hold to charge; Down+A: slide; START: equipment menu.
Mega Man III — About this game
Dr. Wily has seized an offshore oil platform, sending Mega Man into another mission against his Robot Masters. Charge the Mega Buster or slide beneath obstacles while searching for a useful weapon order. Beating a Robot Master adds a special weapon to the equipment menu. Try different weapons against bosses and watch their remaining energy rather than relying on the same attack everywhere. Health and weapon refills help sustain a route through hazards and repeated boss attempts. Press START and choose a boss portrait with the D-pad, then confirm with A. Practise the basic weapon before committing to a jump; use the equipment menu to try newly acquired weapons.
Mega Man III Game manuals
Cheats
No cheats have been added for this edition.
Player verification and sources
Browser play was reviewed before this edition was published in the catalogue. The date below is the catalogue publication date, not the game’s original release date.
- Browser test and catalogue publication date
- Browsers and devices
- PC: Chrome, Edge and Firefox. Mobile: Chrome on Android and Safari on iPhone and iPad.
- Player engine and core
- EmulatorJS 4.3.0-pre · gb
- Tested by
- rwEmulator
Sources and editorial basis
rwEmulator reviews edition metadata, release information, game manuals and first-hand browser-play notes. Available manuals are linked below; the editorial policy explains how facts are checked and corrections are handled.