The Twin Fires is a room in the Magmoor Caverns. The room is extremely hot and will damage Samus if she does not have the Varia Suit. This room connects the Twin Fires Tunnel to the North Core Tunnel. The room is divided into two main sections. The room closest to the Twin Fires Tunnel has a number of fire jets near the door. The center of the room has a pool of lava with a Magmoor in it. The only way across is to use a Missile to dislodge a Stalactite from the ceiling to make a platform. Samus can also use the Grapple Beam to get across. The second room is larger than the first but has similar elements. Samus must use a number of Stalactites to get across a roundabout path with a number of Puffers. The Grapple Beam can also be used here. A Purple Door leads to the North Core Tunnel. The tunnel between the two areas has two horizontal fire jets.