The aim of Alien Go is to navigate the alien through the walls. The game derived from flappy bird. The player scores one point for each set of walls successfully passed. Alien Go is a game where you tap the screen to make the alien UFO hover.
Focus on the bottom wall to avoid over-hovering. But make sure you pay attention to the top wall as well! Don't be afraid to fall, because the alien still covers distance. Do not get over confident!