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Reaching the top of the room4 hints left
Using two portals can be a bit of a learning curve, but this puzzle should feel familiar.

Familiar how?

There's a pit below you, and a portal-friendly surface above your head. You dealt with something similar in Chamber 10.

Hmm...

There's no portal waiting for you down below or up above, so you'll need to create both yourself.
Shoot a portal into the pit below you, and another one on the panels overhead.

Repeat this process on each level to reach the exit, and don't be afraid to adjust your 'pit portal' mid-fall.

What about the button?

If in doubt, look up - there'll always be a new portal-friendly surface to help you to reach the next level.


If the slanted panel is annoying you, then try jumping to get a better shot.

Guide help

This is the low-spoiler guide for "Reaching the top of the room" puzzle in Portal. Unlike in normal walkthrough, you get gradual hints on how to solve the puzzle. Click the big button below to see your first hint. If the hint contains a spoiler, you will be warned about it before clicking.

Up to "Test Chamber 12"
Hints written by Kieron West
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