Popups are a mechanic used in many horror games. The idea is to flash the player with a disturbing Image/Animation, often with a loud sound playing. It is supposed to scare the player.
In the first opus, the popups are screens of the teletubbies, showing their situation.
Slendytubbies II Edit
In the second opus, the popups are edited images of teletubbies. Some of them are just supposed to scare, but a few of them seems to talk a bit about the backstory.
- The Newborns popup is a monochromatic version of "Without Title" from Teletubbies From Hell gallery by DeviantArt user Yaro42. This is also the image that inspired the New Borns.