You got to the most ordinary bowling simulator, everything here is absolutely the same as in real life. And the same rules. The game consists of ten frames, each of which has two throws. If you managed to knock down all the pins at once, this is called a strike, if you finished off the rest from the second time, this is a spare. Here you can spin the ball as you like, for this you specify the angle of the throw twice, the first is the initial direction, the second is the side of the spin, and the farther they are from each other, the more twisted it will turn out. Have a nice rest!