Understand Samus, the SA-X and the X infection
Identify the central hunter, her dangerous duplicate and the organisms behind the station outbreak.
Original 2002 Game Boy Advance Metroid Fusion. The guide follows the English cartridge mission sequence and original GBA controls. Later emulator menus, save states, fan modifications and mechanics from other Metroid games are outside its scope.
4 characters · one picture per entry · open a picture for full size.
Character directory
Samus Aran
Samus survives the X infection through a Metroid-based vaccine. Her new Fusion Suit starts with limited abilities, and exploring the research station lets her rebuild the equipment needed to contain the outbreak.
SA-X
The SA-X imitates Samus in her former Power Suit. Its early appearances demand an escape route because its powerful weapons and Ice Beam exceed the weakened hunter’s current defenses.
X Parasite
The X replicate host creatures and their abilities. Samus can absorb ordinary free-floating parasites after treatment, although cold blue X remain dangerous until she obtains the Varia Suit effect.
Arachnus-X
An X imitation of Arachnus confronts Samus near the beginning of the station investigation. Defeating its creature form and exposed Core-X restores the Morph Ball ability needed for narrow routes.
Quick notes
- Samus is rebuilding a familiar toolkit. The infection and treatment leave Samus with a changed suit and a fraction of her former equipment.
- The SA-X changes the purpose of a room. An encounter with the SA-X can turn an ordinary exploration corridor into an escape sequence.
- The X connects monsters to upgrades. The visible creature is often a form borrowed by the parasite inside it.
A familiar appearance can conceal a very different threat.
Picture details
Game artwork belongs to its respective rights holders.