Ruins Entryway is a room in Phendrana Drifts in Metroid Prime. It is fairly large and open, with a tall tower at one side. A fair number of containers are found in piles in corners of the room, and the two doors are opposite each other. The only hazard in the room is the three hovering Pulse Bombus. Upon returning to Phendrana Shorelines from this room once the Boost Ball has been obtained, Samus sees Meta Ridley flying over the view ahead.
- 3 Pulse Bombus (except in visits with Ice Burrowers)
- 5 Ice Burrowers (Later in-game)
- 2 Baby Sheegoth (Later in-game)