Training Chamber is a large room in the Torvus Bog in Metroid Prime 2: Echoes. On the first visit, the particles of Phazon encountered in Training Access reform here into Dark Samus, who laughs before disappearing. To access the next room, Samus must defeat the two Bloggs occupying this room to activate a Spinner. Then, she can use it to rotate two Morph Ball tunnels in the floor, one outlined in blue, the other red. The Dark Aether version of this room was the Sacrificial Chamber.