This mappack passes through the abandoned and destroyed Aperture. You're a test subject trying to escape. But GLaDOS, reminding of what Chell did to her, will use anything to try to kill you. But, will you survive to her?
This mappack has custom music, tileset and backgrounds.
Music: "Excellence Is Rewarded" by Harry Callaghan (Harry101UK):
http://youtube.com/Harry101UK
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Screenshots: (WARNING! MASSIVE SPOILERS!)
World 1: Abandoned Science
And now it has an alternative download with another mappack that is, basically, the same thing that this mappack, except that it adds time challenges and no checkpoints, for people that likes running with portals.
More:
Trailer (Thanks to Costinteo)
Trailer (Thanks to MarioMaker)
Videos/Walkthrough:
Completely done
DOWNLOAD:
Pop A Portal - RAR
Pop A Portal - ZIP
Pop A Portal - Time Challenge - RAR
Pop A Portal - Time Challenge - ZIP
If you wanna use the tileset (CREDITS FOR ME):