Sector 2 (TRO)

Sector 2 (TRO) is the tropical sector of the Biologic Space Laboratories research station in Metroid Fusion. It has a humid climate and has a jungle environment, housing varies creatures. It is also the largest sector on the BSL station. Sector 2 is the first sector where Samus encounters a SA-X. It is also where Samus fights Pogo and Nettori.

When Samus first visits the Navigation Room in this sector, Adam tells her about the SA-X and how much of a threat it is to her. Samus's first mission in Sector 2 is to unlock the Level 1 security doors. When she has done this, she is able to download Bomb data and eventually fights Pogo. It is during this visit that Samus first encounters an SA-X.

Samus later visits Sector 2 to find out why an odd type of vegetation is chocking the Reactor Core components. As she is doing this, she encounters an SA-X once again in the sector. She eventually meets Nettori, a strange plant-like creature that's the source of the vegetation. Once she defeats it, she must defeat a Hard Core-X. Once she defeats this X, she obtains the Plasma Beam. The power also turns back on.