Ten-pin bowling ramp in which a bowler will use two hands and push the ball down the ramp onto the lane. There are three widely recognized delivery styles used while the ball is released onto the lane. (See article: Bowling form.) These are the "stroker", "cranker" and "tweener" styles. Lesser used (and newer) styles include "no-thumb" and "two-handed". Strokers often keep their shoulders square to the foul line and their backswing generally does not go much above parallel to the ground. This type of delivery reduces the ball's rate of revolution, thus decreasing its hook potential and hitting power. Strokers rely on
Ten-pin bowling two extra balls for achieving a strike in the tenth frame, or one extra ball for achieving a spare. This allows for a potential of 12 strikes in a single game, and a maximum score of 300 pins, a perfect game. The player with the highest pinfall at the end of ten frames wins. Although, if there is a time limit and if time runs out before the end of ten frames bowling stops, and the person with the highest pinfall wins the game. In general, one point is scored for each pin that is knocked over. So if a