Switch the gravity to control your Alien to avoid the obstacles and escape through a magic gate. 30 levels to play. Gravity Aliens is a fun platform game in which you must run through a series of levels to escape your pursuer. You control a character that has mastered gravity and can flip upside down to run on both the ground and ceilings! You run automatically and you must simply flip your gravity switch to change between the top and bottom platforms. During each level you are faced with a myriad of obstacles that you must avoid using your gravity flips – as you progress the pace becomes faster and the levels become harder.