Press the arrow keys according to the sequence shown on the stage as fast and accurate as possible before the time runs out. Mouse / Touch screen support: Tap the corresponding side as pointed by the arrow to simulate a key press (e.g. tap on the right-hand side for a right arrow)
Accuracy is important that by making a mistake, the whole sequence has to be redone from the beginning. By pressing the stop button you can still practice but the score will not be recorded as the time will no longer be running out of.
