It's a medium-sized room with two tall electromagnetic columns and a puddle of Dark Water. It's where Samus fights the Grapple Guardian. After the Guardian is defeated doors to the Undertransits are blocked by Denzium grates. Samus must grapple across to a ledge containing a hatch to the Sacrificial Chamber Tunnel.
|Grapple Guardian||1||Second Visit|
|Hunter Ing||2||The first visit and everytime after the Grapple Guardian is defeated|
Rooms in Metroid Prime 2: Echoes