9 Screamers all at once is a screamer video uploaded by YouTube user Jupiter9099 on May 24th, 2012. The video begins with the screamers like Luna Game 1 and 2, Michael Jackson's Ghost, Stickman Screamer, SCP-450, K-fee commercials, Ghost Caught on Tape and The Maze. After 37 seconds, the screamers will all pop up at the same time. There is also another version, 9 Screamer reactions all at once, which shows people reacting to screamers.