So yeah, I made a bowling alley. It's actually really simple - So you head over to the "ball return" and press a button, which sends power to a dispenser, which launches out slime balls. (Bowling balls.) Then, once you press the start button, the redstone travels to the back of the building and powers the pistons on and off. So simple! Also, if you get the "bowling ball" to "knock down" a "pin" (Hooray for quotation marks! :P) the piston will stop moving up and down. You win once all the pistons stop moving. Then you simply collect the bowling balls, and play again! I've included a way to check out the redstone, and i've also included chests filled with different bowling balls if you are going to try teams. :D This world save also comes with all my other creations - just only you'll spawn in the bowling alley. :D Enjoy, people!

~Steven