Portal Test Chamber 09

This chamber is the tenth level of the game and offers the player a somewhat more challenging test. Upon entering the chamber, GLaDOS claims that this test is impossible, and proceeds to apologise for the test as you attempt to solve it. However, the chamber can possibly be completed.

Hazards

 * Cube Hazard

Glitches

 * It is possible to stand on the button and shoot a portal halfway through the door opening. You can jump through the portal in front of the door, and jump back out at the other end.