Click the green flag and when you press the shop button on the right you will see 3 turrets.If you put your mouse on a turret without clicking it you will see the name and the price.Click the turret and place it wherever you want on the map except for the track.Press the start button in the left corner and enemies will come out.The turret will shoot the enemies and they have health bars.If you have enough money you can upgrade the turrets by clicking them.You can buy as much turrets as you want.
Music : Cymbal Echo
