Portal 2 Coop: Narbacular Drop Achievement

Portal 2 Coop: Narbacular Drop Achievement Place a portal under your co-op partner while they are gesturing – 25 Points
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Portal 2 Coop: Rock Portal Scissors Achievement

Portal 2 Coop: Rock Portal Scissors Achievement Win 3 co-op games of rock-paper-scissors in a row – 20 Points
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Portal 2 Coop: Mass and Velocity Test Chamber 1

Portal 2 Coop: Mass and Velocity Test Chamber 1 Portal 2 Coop: Mass and Velocity Test Chamber 1
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Portal 2 Coop: Mass and Velocity Test Chamber 2

Portal 2 Coop: Mass and Velocity Test Chamber 2 Portal 2 Coop: Mass and Velocity Test Chamber 2
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Portal 2 Coop: Mass and Velocity Test Chamber 7

Portal 2 Coop: Mass and Velocity Test Chamber 7 Portal 2 Coop: Mass and Velocity Test Chamber 7
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Portal 2 Coop: Excursion Funnels Test Chamber 8

Portal 2 Coop: Excursion Funnels Test Chamber 8 Portal 2 Coop: Excursion Funnels Test Chamber 8
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Portal 2 Coop: Empty Gesture Achievement

Portal 2 Coop: Empty Gesture Achievement Portal 2 Coop: Empty Gesture Achievement – Drop your co-op partner in goo while they are gesturing by removing the bridge under them – 25 points
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