Movement
Move quickly to get through one side of a moving object, then stop there before advancing. The matching color that is required may not be moving as fast as you. After clearing an obstacle and before entering the next set, tap lightly to remain floating without moving ahead. Consider all the color blocks required to pass before you begin to move to avoid running into a barrier. Certain shapes will change directions or speed. You do not have to hit a color. If you can make it through an obstacle without touching anything, it still counts as a success as long as you collect the star. There is a small buffer outside the shapes. If you realize this in time, you can try to fall back even if you just brushed the wrong color.
Resuming
Although the game has no time limit. You also cannot save the game. However, if you pause then close the app, you will resume where it was paused. Begin gentle taps before the game resumes to avoid dropping too low and crash. Do not tap too vigorously or you will shoot too high. If you quit the app normally, your position will not be saved.