The first version aired on the Fox television network from 2008 to 2009. The show was an adaptation of the Japanese game show N?kabe (???) in which players must contort themselves to fit through cutouts in a large 13 feet (4.0 m) by 7.5 feet (2.3 m) Styrofoam wall moving towards them on a 50 feet (15 m) track. Cartoon Network picked up the series in 2010.