Portal companion cube sketch

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Portal 2 Companion Cube

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Chell in Aperture Labs

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Portal character in a test chamber

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Portal characters in a city

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GLaDOS and Companion Cubes

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Chell in Aperture Science

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Portal companion cube with heart

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Companion Cube Warning

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Companion cube in a test chamber

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Portal game cover art

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Companion cube with heart symbol

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