Colour Blindness Test

Colour Blindness Test is a screamer video uploaded to YouTube by user Ashwani Srivastava on January 12, 2013.

The video challenges viewers to choose the correct answer for which number is shown in a color blindness test; it says that a special score will be awarded at the end. However, after completing the seventh piece, a picture of Regan MacNeil from The Exorcist pops up, along with the same scream from The Maze.