# Metroid Fusion - A Thrilling GBA Metroidvania
*Metroid Fusion*, known as *Metroid 4* in Japan, is a 2002 action-adventure platformer developed by Nintendo R&D1 and published by Nintendo for the Game Boy Advance. The fourth main *Metroid* game, set after *Metroid II* and *Super Metroid*, it follows bounty hunter Samus Aran on the Biologic Space Laboratories (BSL) station, where she’s infected by the X Parasite. Saved by a vaccine from the last Metroid, Samus, guided by her AI CO Adam, hunts the SA-X, her infected doppelgänger, across six sectors. Featuring non-linear *Metroidvania* exploration, Samus acquires upgrades like the Morph Ball and Ice Beam by absorbing X Parasites. With vibrant 8-bit visuals, a tense soundtrack by Minako Hamano and Akira Fujiwara, and a more linear structure than *Super Metroid*, it sold over 1.6 million copies and received acclaim (*IGN*: 9.5/10, *GameSpot*: 8.6/10) for its atmosphere and gameplay, though some criticized its linearity. Re-released on 3DS (2011, Ambassador Program) and Wii U Virtual Console (2014).
## Why Play Metroid Fusion?
*Metroid Fusion* offers gripping *Metroidvania* gameplay with a focus on exploration and combat in the BSL’s six sectors (e.g., tropical, aquatic). Samus gains abilities like High Jump, Plasma Beam, and Diffusion Missiles, with the SA-X creating intense chase sequences. RPG elements include health/energy tanks and missile upgrades, with Adam’s navigation orders guiding progress. Gameplay lasts 5-8 hours (10-15 for 100% completion), with four difficulty modes (Normal, Hard, and two unlockable modes) and multiple endings based on completion time and items. Its sleek controls, eerie atmosphere, and challenging bosses (e.g., Nightmare, Ridley) make it a must-play for retro ROM and *Metroid* fans, though its linear mission structure may feel restrictive compared to *Zero Mission*.
## Game Features
- Play as Samus Aran across 6 sectors of the BSL station
- Gain abilities via X Parasites: Morph Ball, Ice Beam, Space Jump, and more
- Collect energy tanks, missiles, and power bombs for upgrades
- Face bosses like Arachnus, SA-X, and Omega Metroid; evade SA-X chases
- Four difficulty modes (Normal, Hard, unlockable); multiple endings
- Experience authentic GBA gameplay on our retro ROM platform or Wii U Virtual Console
## Play Metroid Fusion Online
Hunt the X today! Our website, Classic Joy Games, lets you play *Metroid Fusion* instantly with no downloads, optimized for modern browsers using GBA emulators. Alternatively, enjoy it on Wii U Virtual Console, 3DS (Ambassador Program), or sites like RetroGames.cz or EmulatorGames.net. Physical copies are available on eBay/Amazon ($50-$100). Ideal for fans of retro ROMs and *Metroidvania* classics! Note: For emulation, use mGBA or VisualBoyAdvance for optimal performance; GBA SP or emulators with brightness tweaks recommended for visibility.
Join players worldwide and enjoy *Metroid Fusion* on Classic Joy Games. Start your mission now and stop the SA-X to save the galaxy and uphold Samus Aran’s legacy!