- Fourth-Wall Mail Slot: Ask Aperture.
- Middle School AU
- Recursive Fanfiction: Turret's POV by "turret".
- Stealth Parody: Not even Skepkitty could possibly guess this was a Troll Fic twenty chapters in.
- Troll Fic
- Write Who You Know: Based on a roleplay game the author (BoomerangFlower123, a.k.a. CaveStoryNinja) and his friends play. GLaDOS even mentions that the memories and personalities of the host bodies to which the Portal characters were transferred will resurface.
- Then there are Midnight and Xelac, who aren't even going as Portal characters.