Dynamo Works is a large room in the Sanctuary Fortress area of Metroid Prime 2: Echoes. It serves as the location of the Spider Guardian, which Samus must kill to recover her Spider Ball. There are three sections, a Morph Ball maze and two sections that can be traversed without the Morph Ball on either side. The Morph Ball maze makes up the bulk of the room, and is where the Spider Guardian is fought. In addition to the Spider Ball, a Missile Expansion can be recovered here. Another section features a ledge with C-Rch's body and a portal to Hive Dynamo Works.