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Played from a side-scrolling perspective, the game sends Samus through SR388 and a research facility as she explores, fights, and gradually unlocks new paths. Core play revolves around discovery, combat, and ability gating, with familiar tools such as the charge beam, missiles, and mobility upgrades. The Fusion Suit can absorb X parasites to restore health and ammo. Mission briefings and navigation cues guide progression between bosses, puzzles, and backtracking routes.

Samus Aran

The bounty hunter protagonist who continues her mission after becoming infected by the X parasite.

ADAM Malkovich

The AI in the research network that briefs and directs Samus throughout the mission.

SA-X

A powerful enemy born from an X-infected copy of Samus, embodying the biological threat.

Robo-Drone

A support unit that helps relay information and navigation data.

Prioritize energy tank and missile expansions whenever you spot them, since extra survivability makes the later areas much easier. Against bosses, keep moving and look for short damage windows rather than forcing trades. Absorb X parasites quickly when safe to recover health and ammo. For SA-X encounters, play defensively, learn its patterns, and only attack after its movement commits.

No cheats or unlockables available

Tips and tricks

After each briefing, check the map objective first, then return to uncover extra upgrades along the way.

Tips and tricks

Use suspicious walls and floors as clues; hidden passages often lead to mandatory progression items.

Tips and tricks

If ammo runs low, clear regular enemies and absorb X drops before pushing deeper.

User Reviews

Many players regard it as one of the best Metroid games thanks to its tight pacing and strong atmosphere.

User Reviews

Some fans feel the heavier guidance reduces the freeform exploration that defined earlier entries.

Comments

5/5
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About Metroid Fusion

Metroid Fusion is a 2002 Game Boy Advance platformer, action-adventure, sci-fi, metroidvania game, developed by Nintendo R&D1 and published by Nintendo. Developed by Nintendo R&D1 and published by Nintendo, Metroid Fusion is the fourth main entry in the Metroid series. It follows Samus after an X parasite infection, outfitting her with the Fusion Suit as she investigates a biological outbreak under AI guidance. While preserving exploration and upgrades, it adds stronger narrative direction and mission-based… You can play Metroid Fusion instantly in your browser at https://www.classicemu.com — no downloads or installation required, with cloud save support and mobile touch controls.

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Start Metroid Fusion directly on this page with ClassicEmu. The emulator runs in your browser, so you can play online without installing a desktop emulator first.

Platform and emulator context

Metroid Fusion is listed under Game Boy Advance so players can find it alongside games from the same console, handheld, or arcade system.

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