LegShocker , created by Cologne-based art group FUR, is a painful interface for PlayStation2, in particular football/soccer games.

The players, before putting on their football footwear, each slip into the LegShocker, a hand-sewn shinpad. A small hammer is activated and hurts the leg each time a player of the opposite team makes a good move against yours or scores a goal.

As Neural explains, the irony behind the works makes a breach in the wall that separates simulation and reality, adding an element difficult to simulate (the pain) inside an ambient that exists only inside the cirucuits of the console and on the pixel of the screen.

Video.
Related entry: the Painstation.