The SlayStation is not a PlayStation. It's more of a musical instrument. The notes you play on it come from video clips of video games. Check this out.
The top video here and all the rest in this post were made by a guy named Mike Toillion who appears to have been working on something called the Visual Music Project throughout the past year. He's been taking snippets of video games - snippets that include specific sounds link the swing of the club in a Tiger Woods title or a punch in Mike Tyson's Punch-Out - and stitching them together to make a sort of audio-visual music-gaming collage.
The first video in this post is a result of Tollion concocting a track out of Nintendo samples. (He's also done one for the Super Nintendo). This second video is composed from Xbox 360 games.
How's it all work? Tollion uses his own software to piece together clips of games he has captured. But there's another way to do this using a custom arcade cabinet he built called the SlayStation.
On his Vimeo page, he explains the thing: "This box houses a special version of the Visual Music Project software, allowing users to manipulate video clips from the Nintendo gaming system, in order to make music in real time."
Here it is... the SlayStation:
To be honest, I didn't get it at first, but now that I see what you can make with it, I'd love to see and hear more. Good work, Mike!