The Tokyo Game Show has kicked off in earnest, and Sony has released two videos of the stunning Vita title Gravity Rush, known as Gravity Daze in Japan: a trailer, and a demo walkthrough courtesy of director Toyama Keiichiro. Set in the mythical city of Hekseville, the game casts players as the wonderfully named Gravity Kitten, tasked with saving the city from the threat of Gravity Storm. A press of the right trigger puts Kitten in a zero-gravity state; move the camera using the Vita's gyroscope, point at an object and press the trigger again and Kitten will fall onto it as gravity is restored. Walls and ceilings become floors, and enemies can either be kicked from great heights or dispatched by thrown items.