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Play Metroid Fusion (Japan edition · Japanese) Online
Metroid Fusion
Play Metroid Fusion online. A GBA action adventure where you explore BSL where the X-parasite and SA-X hide while recovering abilities according to navigation commands.
Browser play

Game Boy Advance (GBA) — EmulatorJS controls
Default Player 1 keyboard mapping. Change keys in Controller Settings.
| Console button | Keyboard |
|---|---|
| ↑ / ↓ / ← / → | ↑ / ↓ / ← / → |
| A / B | Z / X |
| L / R | Q / E |
| START / SELECT | Enter / V |
Open Controller Settings to configure your keyboard or gamepad. Touch controls are available on mobile.
How to Play Metroid Fusion
Quick start
Select the file in "START GAME". After arriving at BSL, check the instructions on the computer, proceed to the left on the main deck and stop at the first navigation room. Defeat the enemy creatures at the far end of the isolated area, then return to the navigation to receive the next command. First, prioritize the destination on the map and run away from the SA-X in the early stages without fighting.
Controls
D-pad: Move, up to face up, down to crouch (after acquiring the ability, press down twice to morph ball). A: Jump/Decision. B: Beam, bomb/cancel when ball. Aim diagonally while holding L. Hold R and press B to do a missile, and when it's a ball, do a power bomb. START is for map/pose, R on the screen is for status, and L is for sleep mode.
Metroid Fusion 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 · gba
- 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.