Portal/Chamber 01

This chamber is also designed to get you acquainted to the game, and is a simple matter of timing. Fall into the main area, and look through the portal. It will regularly change from a room with a cube in it, to a room with a button, to the room with the exit door. When the room with the cube is visible, go through the portal, pick up the cube, and return to the main area.

You must now wait until the room with the button is visible. When it is, enter it with the cube, place the cube on the button, and return again to the main area.

Finally, you can now wait until the exit door is visible, go through the portal, and exit to the next chamber.

"Please move quickly to the chamberlock, as the effects of prolonged exposure to the button are not part of this test."

- GLaDOS