These are the items that appeared in the Bioweapon Research Center.
Major Items[]
Power Bombs[]
During the Queen Metroid battle, Samus will become trapped in the creature's stomach. Before her energy is fully drained, Samus will enable use of her Power Bombs so that the Queen can be destroyed from within.
Missile Tanks[]
Missile Tank 1[]
From the main laboratory, a ramp leads up to a small room in which this Tank can be easily obtained. However, before leaving Samus will have to fight through fourteen Super Zebesians. This tank can be obtained when Samus returns to the Bioweapon Research Center after Sector Zero, or after the credits.
Missile Tank 2[]
Following Samus's return to the BOTTLE SHIP, the chamber with this Tank becomes accessible through the southern door of the room where MB was killed. On the bottom floor of this next room is a small hexagonal section of floor. Destroying it with Bombs/Missiles will reveal the Tank.
Missile Tank 3[]
In the same room as the previous Tank, but on the top floor. Samus must find the hidden opening in the central terminal and Kick Climb up into a Morph Ball tunnel, where she will navigate through several walls until she reaches the Tank.