Best pixel fan art winner

Best pixel fan art contest winner By Ricardo Lopes

GLaDOS is an artificial intelligence created by Aperture Science. She is the main antagonist throughout the Portal series. She would test Chell in difficult puzzles with Chell using the Aperture Science Handheld Portal Device to solve them.


GLaDOS does not appear at all in Mari0, though she was most likely going to be added in Mari0: Special Edition as a boss for the planned Portal Campaign. Multiple tilesets exist add GLaDOS into the game, and in SE she can be integrated further with Animations and/or Custom Enemies.

Portal and Portal 2Edit

She is the main antagonist throughout Portal and the first half of Portal 2's single-player campaign.


  • GLaDOS stands for Genetic Lifeform and Disc Operating System.

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