A long time after Chell escaped, the player returns to Aperture Science, long abandoned and overgrown (again). Reminded of what Chell did on her way out, GLaDOS will do anything to try and stop you.

Pop A Portal is a very Portal 2 inspired mappack, setting the stage for HugoBDesigner's later work, including Hollow Purpose. At the time, its custom tiles and backgrounds were very well-recieved, and was considered a favorite.

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