Subchamber 4

Subchamber 4 is a room in the Impact Crater in Metroid Prime. It is the fourth and final of four subchambers in the crater, and is the fourth area where Metroid Prime in its exoskeleton form is fought. When damaged enough, it will fall through into Subchamber 5 and down into the Metroid Prime Lair.

In the NTSC version of the game, three tunnel grooves exist in the ground that allow Samus to avoid Metroid Prime when it runs across the room, but in the PAL version, all but the middle groove have been removed.

Connecting rooms

 * Subchamber 3 (one way entrance)
 * Subchamber 5 (one way exit)