Door

Summary
A list of the various door shapes and colors.

Halo 2

 * Cairo Station: Green Light Doors And Red Automatic Doors


 * Outskirts: unpassable grey doors with yellow upside down triangles


 * Metropolis: Doors With Triangular Windows


 * The Arbiter: Doors With Blue Square In The Middle


 * The Oracle: Same As The Arbiter Doors


 * Delta Halo: Doors With An Oval Eye


 * Regret: Doors Which Turns Green And Opens When It's Red


 * Sacred Icon: Pistons


 * Quarantine Zone: Veichle Doors


 * Gravemind: Round Doors That Opens Twice


 * Uprising: Triangular Doors -- sometimes big --


 * High Charity: Same Door As Gravemind -- level --


 * The Great Journey: Same As Uprising Level