projectile motion in bowling

I noticed that bowling balls go through projectile motion when I went bowling this weekend.  It does not matter if you toss the ball in the air or if you just use horizontal velocity, the bowling ball still goes through projectile motion.  While in the air the bowling ball will maintain the same horizontal velocity (disregarding air resistance) and its vertical velocity will have a negative acceleration of -9.8 m/s/s.  The bowling ball is only in the air for a short moment because I do not release the ball at a high distance or at a large positive angle.  The ball is in the air for a moment, follows projectile motion, then lands on the lane, and heads for the pins.  Strike!