F-STOP

 Directed Design Experiments experiment F-STOP
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|description=''Two Bots, One Wrench'' screenshot.
|source=http//www.youtube.com/watch?v=AUEVA1BZfuE&hd=1 Two Bots, One Wrench Video #1 / ''The Final Hours of Portal 2''
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{{Article|Image}}
{{Information
|attention=
|description=''Two Bots, One Wrench'' screenshot.
|source=http//www.youtube.com/watch?v=K4cs56s0e-Q&hd=1 Two Bots, One Wrench Video #3 / ''The Final Hours of Portal 2''
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