sentences:  In 2009, news appeared that the game would only be released for Wii, only in late 2010 it was announced that the PC version would appear first and was released on the Steam digital download service on 1 March 2011.The Wii version was eventually cancelled but later arrived on the Nintendo 3DS in 2012.In "NightSky", the player controls a glowing sphere which can accelerate and decelerate, and sometimes has the ability to invert gravity.