Portal Test Chamber 15

This Test Chamber is the sixteenth level of the game, and introduces the player to more advanced Flinging techniques. The Chamber also requires the player to utilise High Energy Pellets and work with timed Switches.

Hazards

 * High Energy Pellets
 * Goo

Alternative Solutions
{{Spoiler|block=yes|
 * In the very last room, players are able to fling themselves onto the victory lift using the altitude from either of the two lifts.

how to trap yourself

 * use the alternate solution but instead of flining to the exit, open both doors and fling inside.
 * glados will be forced to open the bottom door
 * also there is a hidden radio in there

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