Portal Test Chamber 17 (Bonus)

This is the fifth Bonus map of the game. It is unlocked when the original Test Chamber 17 has been completed.

Hazards

 * High Energy Pellets
 * Cube Hazard

Strategy
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Portals

 * Use two portals to get into the rat hole behind the projecting panel and bring out all the security cameras.
 * Stack the cameras up in the recess where you're supposed to jump across from the last lift platform. Put the Weighted Companion Cube on top and scramble up.
 * Turn back at the edge and crouch down to pick up the Weighted Companion Cube, then you can be on your merry way.

Steps
-To do-

Time
-To do- }}