Magic Cup Game
Magic Cup Game is a Flash game made by Jeremy Winterrowd.
The goal is to try and guess which one of the three cups the blue ball is in after the cups are mixed. There are four levels: easy, medium, hard and really hard. At the last level, after a few seconds of the cups mixing, a close-up picture of Regan MacNeil from The Exorcist pops up with the scream used in all Winterrowd games.
There's also a parody version called Find Justin Bieber, which some parts the game with a picture of Justin Bieber.
NOTE: The following game contains a screamer!