Oracle elevator glitch
From Halopedia, the Halo wiki
The Oracle Elevator Glitch is a glitch that leaves the two players suspended above Threshold in The Oracle.
Steps
- Play The Oracle in Co-op (this glitch works only in co-op)
- Get to the cinematic where The Arbiter says he will cut the cable, then go up to the elevator
- Have one player go on the elevator, leaving the other behind, and press "X".
- Wait for about two or three seconds after the elevator leaves then walk on the elevator platform and press "X" again (it must be timed right before you get teleported to the other player's position)
- If done correctly, you will be suspended in the sky on top of the elevator as shown. Around you walls will appear and disappear as you walk around.
Note: You must have perfect timing or it will not work. Also, if you get teleported into the elevator with the other player and the elevator starts to go down you have done it correctly.