Portal: Still Alive Test Chamber 14 (Bonus)

This test chamber is the fourteenth and final bonus level of the game. It is taken from Portal: The Flash Version MapPack. The challenges of this level are unlocked when the test chamber is completed once.

Hazards

 * High Energy Pellets
 * Laser Field
 * Turrets

Walkthrough

 * Build a small wall which will block one of the turrets' fire.
 * Use one of the cubes to knock down the other turret in the sideways placed gate.
 * Knock down the first turret with a cube.
 * Portal into the room with the High Energy Pellet that is in the ceiling.
 * Use the cubes to build a "staircase" and portal under the High Energy Pellet catcher.
 * With portals, redirect the High Energy Pellet into the catcher.
 * Portal back into the ceiling room and bring 2 cubes.
 * Put the cubes into the buttons.
 * Place one of the remaining cubes ono the button that is in the line made with the two previously knocked down Turrets.
 * Portal trough the small hole in the wall.
 * Navigate your way trough the lasers and put the cube onto the button.
 * While you are down, portal trough the small hole next to the button under the Laser Field.
 * Wait for the right time and, by bringing a cube, activate the button.
 * The door where one of the turrets was will open and proceed to the elevator to finish the chamber.