Undertransit One is a room in the Dark Torvus Bog in Metroid Prime 2: Echoes. It serves as a transportation tunnel between Crypt and the Sacrificial Chamber. Like all underwater transit rooms in both Light and Dark Torvus, the room features a section that can be traversed with the Morph Ball. Two gears that do not run have an opening in the middle small enough for the Morph Ball to go through.
- Missile Expansion
- A hidden opening in the tunnels beside the left gear exists, with the expansion in the tunnel. A Bomb Jump must be used to collect the expansion.
- Kinetic Orb Cannon
- "Kinetic Orb Cannon system active.
- Enter the hologram in Morph Ball form to use the system."