Travel from gravity panel to gravity panel, reversing gravity with your gravity gun to get to the exit teleporter
Instructions:
Move with WASD or left analogue stick
Jump with space or on a xbox controller button a or left bumper
In levels where you are holding the gun, aim at the gravity panels using the mouse or right analogue stick on the controller and shoot using left mouse button or right trigger on controller. You have limited shots indicated in the top right of the screen