Crossway

Crossway is a room in Chozo Ruins in Metroid Prime. It is a fairly long room, arched and with a half-pipe along most of its length. To reach the doors to Elder Hall Access and Crossway Access South, Samus may use the Boost Ball in the half-pipe. At this far end, there are also three pieces of Chozo Lore to scan, and a Cordite decoration on the wall that can be destroyed with a Super Missile. Doing this reveals a scan point, which reveals a Spider Ball Track and a Bomb Slot when used. Using the Boost Ball again eventually leads to an elevated Missile Expansion.

Connecting rooms

 * Furnace (Purple Door)
 * Elder Hall Access (Red Blast Shield)
 * Crossway Access South (White Door)

Items

 * Missile Expansion:Destroy the piece of Cordite near the Elder Hall Access door and scan what's behind it. Boost up the half-pipe and attach to the revealed Magnetic Rail to reach a Bomb Slot; repeat this for a Morph Ball elevator that leads to the expansion.