Play Metroid Fusion Online

Summary

Metroid Fusion brings the classic Metroid feel back to the Game Boy Advance, picking up after Samus’ triumph in Super Metroid only to have her infected by the shapeshifting X parasite. A rescue by Metroid DNA rewrites her suit and grants her the uncanny ability to absorb X’s powers, giving the familiar side‑scrolling adventure a fresh visual twist.

The game keeps the series’ hallmark platform‑jumping, shooting, and puzzle mechanics, but it nudges players along with mission‑based checkpoints that guide exploration without completely stripping away the sense of discovery. A neat bonus lets owners connect the GBA to a GameCube via link cable, unlocking extra content for Metroid Prime and rewarding cross‑system curiosity.

Critics praised Fusion’s tight controls, vibrant graphics, and memorable soundtrack, earning it Handheld Game of the Year from the AIAS and top adventure honors from IGN and GameSpot. Despite a slightly shorter, more linear experience, the title still moved over 1.6 million copies worldwide, with a strong debut in North America.

Developed by Nintendo’s R&D1—the same crew behind Super Metroid—the project was steered by series designer Yoshio Sakamoto and producer Takehiro Izushi, while composers Minako Hamano and Akira Fujiwara supplied the atmospheric score that still echoes in fans’ heads today.

Storyline

Metroid Fusion opens with bounty hunter Samus Aran escorting a Biologic Space Laboratories survey crew on the surface of SR388. A Hornoad is slain, but a yellow X parasite bursts from its corpse and infiltrates Samus’s body. After the mission her ship crashes, she is rescued, and doctors discover the X has lodged in her central nervous system. Using cells from the infant Metroid she once rescued, they create a vaccine that eradicates the parasite, grants her the ability to absorb X nuclei, and makes her vulnerable to cold.

Recovered, Samus is sent to investigate an explosion at the BSL research station. Her new gunship’s computer, which she nicknames "Adam" after her former commander, explains that the X can copy DNA, and that an infected fragment of Samus’s Power Suit has spawned the SA‑X – a perfect replica with all of Samus’s upgraded abilities. The SA‑X detonates a Power Bomb in the Quarantine Bay, releasing countless X specimens throughout the station.

Exploring further, Samus discovers a Restricted Lab filled with infant, Gamma, Zeta and even Omega Metroids, part of a secret Federation breeding program. The SA‑X triggers the lab’s auto‑destruct, freeing the Metroids; the station’s emergency fail‑safes lock down, and Samus barely escapes as the lab explodes.

Adam warns Samus that the Federation intends to capture the SA‑X for military use, but she refuses, fearing the X will overwhelm the galaxy. She convinces Adam to alter the station’s trajectory so it will collide with SR388, annihilating the X on both the station and the planet.

In the final showdown, an Omega Metroid attacks Samus, but the weakened SA‑X intervenes with its Ice Beam before being destroyed. Samus absorbs the Core‑X, regains the Ice Beam, and defeats the Omega Metroid. Her ship, piloted by rescued Etecoons and Dachoras, arrives just as the station crashes into SR388, eradicating the X once and for all.