Minigyro Chamber is a room in the Sanctuary Fortress of Metroid Prime 2: Echoes. It is a large room containing several rotating gyros in the middle. To deactivate them, Samus must use four Bomb Slots color-coded amber, cobalt, crimson and emerald. This code is showed on a scannable panel at the entrance. The color code is simple: the four gyros (amber, cobalt, crimson and emerald) need to be deactivated in alphabetical order. Upon subsequent returns to the room, three Harmony Class Drones will bomb Samus as she crosses through the morph ball track. If Samus uses her Charge Beam, she can draw the closest Drone to the glass window outside of the track so that she can destroy them.