Piler Sky is a challenging reaction game in which you have to build a tower as fast as you can. Pass the flags to reset the timer and keep going. Tap the up arrow to add blocks to your tower. Try to build as fast as you can. If the next block is the same color as the last one, your tower will blow up. You will have to tap down to remove the previous block, and then continue building. You'll need lightning reflexes to make it!