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Silhouette of Robot and Cake — Blue

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Aperture Laboratories cake scene

1280 × 800

GLaDOS with apple and laser

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Aperture Laboratories logo with Companion Cube

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Portal Game Logo — Black, Dark, Mysterious

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Portal Game Logo — Black, Neutral

1440 × 900

Portal title screen

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White Figure Running — Black

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Portal art with character and robot

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Robotic Camera Device — Black

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Valentine's Day with GLaDOS

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Portal game ending scene

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Chell in a Puzzle Room

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Aperture test conclusion screen

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Person Entering Portal

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Robotic Camera Device — Brown

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Robotic Spheres in Chamber

1680 × 1050

GLaDOS from Portal

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Portal game safety icons

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Robotic Eye Device

1280 × 1024

Aperture Laboratories Logo — Blue, Minimalist, Vector Art, Text, Black, Aperture Laboratories

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Portal cake and cube

2560 × 1024

Cave Johnson quote from Aperture

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