Dark Torvus

From Wikitroid, the Metroid wiki

Dark Torvus is the Dark Aether shadow of Torvus Bog. Dark Torvus is filled with Ing, and is the resting place of the Chykka. Dark Torvus is the second sector Samus must explore in Metroid Prime 2: Echoes, after the Agon Wastes. Like its Light Aether counterpart, Dark Torvus has two sections, an upper, marshy part and a lower, closed-in part. The area's guardian is Chykka, and like the other Dark versions of Aether, it contains almost every dark version of a creature on Aether. Another difference from Light Aether is that it has most of the water drained out. But the water that has not been drained out is harmful, but nullified with the acquisition of the Light Suit.

It's bosses are, in order of being fought and after the rewards you get from them: Boost Guardian (Boost Ball), Grapple Guardian (Grapple Beam), Chykka (Dark Visor), and the Power Bomb Guardian (Power Bomb).