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The rocket turret6 hints left
A fairly ordinary room with a fairly ordinary window, until you press the button.

What do I do?

I wouldn't blame you for attempting a tactical retreat after things get explode-y, but there's only one way forward - and it's behind the turret.

Luckily, it can't move its head very quickly.

Hmm...

The turret smashed the glass when it locked on to you - maybe you can make that happen again to get ahead?
Stand still in front of the other pane of glass, then quickly get out of the way when the turret locks on.

This will shatter the glass and let you proceed.
A few rooms away, you'll find another pane of glass!

Good luck getting the rocket turret to follow you in here, though - it doesn't have any legs.

Hmm...

Is there anything useful in the room with the glass you need to break?

Remember - projectiles can travel through portals.
Put a portal on the wall near the glass, and another in front of the rocket turret as seen below.


When the rocket turret fires at you, step aside and let the explosive fly through the portal to break the glass.

You also could've grabbed one of the chairs from the previous room and thrown it at the glass to break it (but come on - rockets are much more fun!)

Guide help

This is the low-spoiler guide for "The rocket turret" 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 "Escape Part 3 (After Even More Pistons)"
Hints written by Kieron West
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