You would like to have a twin, which would help you to pass the puzzle? This mod will show how to use a time machine to create his counterpart from the past that will help pass the puzzle.
Thinking with Time Machine. Beta v1.0
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Description
One map from the beta test.
really awesome, I love the concept of this idea, and I can't wait to play it!
Frick'n awsome
whoopee yay
Wow, so here's an idea for Portal 3 :P
Amazing.
I thought you could just go back in time and prevent glados' construction, but solving puzzles is better, science ftw!
Oh, tnx 4 idea. Maybe I will use it..
Wtf? Where is HD button on video??
Youtube, 1080p: Youtube.com
Why does the video cut off at the beginning?
See it on Youtube..
This is amazing. You can come up with a huge amount of fun tests with this brilliant testing element. This is one of the Portal modifications that I am looking forward to playing.
Portal 2 modifications*
If it hasn't been released: when will it? If it has: where can I get it!