Screamer
From Screamer Wiki
Screamer
The term "screamer" is used to describe a game, video, website or program that makes the user concentrate on the screen, and then has an unexpected change in it to scare them. Some examples are The Maze by Jeremy Winterrowd, Shafou.com, Ghost caught on tape and the series of K-fee advertisements. Screamers often have scary images and loud screams, per example, Regan MacNeil from The Exorcist movie.
The beginnings
Screamers slowly started to make surface on the Internet in the 2000s. The first screamer to be uploaded on YouTube was an advertisement that aired on German TV for an energy drink called K-fee. At the beginning, a car drives through a field with relaxing music. Then the car gets hidden behind the trees and a zombie appears and screams at the camera. Eight other ads like this were aired on television before being banned because the company was getting complaints of people having heart attacks. After that, the company made new ads for the lite version of their product, where the screamer was replaced with either a guy in a bear costume, a guy saying boo softly or a guy with a monster mask laughing.