Starting on 26 January 2010, people were able to take part in the Four Days Challenge, which was an online search for the Origami Killer. People had to pool ideas and clues in order to find the Origami Killer. When European players registered, they gained access to an exclusive in-game Playstation Home T-shirt. U.S. players were given the chance to get a shirt during the Four Days Challenge. If Week 2 of the challenge was completed successfully, users received a code to play the demo early. If Week 4 of the challenge was completed successfully, users received a code for a free Heavy Rain dynamic theme.