To start the game, click the green flag and move your cursor to the middle of the screen of the project, after that, just wait until the arrows start to move. The arrows are targeting your cursor; if your cursor touches the arrows, you will get a game over. The arrows itself have different unique characteristics. Red arrow: Always chases your cursor. Yellow arrow: Changes the turn direction of this arrow when touching the edge. Green arrow: Same as the yellow one, but randomly changes the turn direction when touching the edge. Blue arrow: Same as the yellow one, but points at your cursor when touching the edge.