The game Pusher you will assume the role of Asel, a young girl locked in the laboratories Aperture Science Innovators. It will have to solve various puzzles in special chambers, builders and scientists gathered under the control of the founder of Aperture Science Innovators - Cave Johnson. To pass the test Asel uses pusher Cannon developed Aperture Science Innovators, which is intended for destruction and pushing heavy objects, panels and window tinting. With this gun, Asel can move quickly or reach inaccessible places.