Varia X

The Varia X was a very rare species of X Parasite that inhabited Sector 6 on the BSL Space Station that orbited SR-388 in ''Metroid Fusion. It was an X that had downloaded the data needed for the Varia Suit.

The Varia X is basically a very large Core-X with mini Core-X orbiting it. Samus must kill the smaller Core-X with her Charge Beam, which will render the Varia X defenseless, transforming into a normal Core-X. The Varia X will sometimes ram Samus with its smaller Core-X, and this can sometimes be hard to dodge. Defeating it will give Samus the Varia Suit, allowing her to enter Sector 5.