Multiplayer

The new Portal code will enable the multiplayer mode, which will be one of the new functions in Portal:Access All Areas.

Despite Portal 2's new co-op function, the developers of P:AAA feel it best to continue, if only to add more than 2 players.

Deathmatch

 * Normal deathmatch
 * Team Deathmatch
 * Random Portal deathmatch
 * Weighted Companion Cube Staredown

CO-OP

 * Combine Invasion
 * Weighted Companion Cube Staredown
 * Puzzles
 * Test Chambers
 * Escape
 * Android Survival

2P CO-OP

 * Weighted Companion Cube Staredown
 * Escape
 * Test Chambers (This is the only mode seen in Portal 2.)