On a large wall are installed several bulbs connected by a chaotic network of cables each to a switch. When a light comes on, the visitor must find the right key to turn it off as quickly as possible. The goal is to turn off as many lights as possible in 60 seconds! The visitor stores information about the connection between the light and the button in his short-term memory - this helps him in the game when the lights start to light up faster. At the end of the game, there is a statistic showing how the visitor did the task in relation to the performances of the other visitors.