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Bowling and Rolling

Line up! Line up, to play Aperture´s newest test; turret bowling! Push the button, roll the ball (figure it out) and hit the turrets, the ball will go through a series of condensed passage ways until it reaches you again. The process can take between 5 and 15 seconds. There is also a return hole next to where the ball comes from, you can put it in there if you mess up. Note: The passages are for balls and will kill you.