Are you one of those annoying people who incessantly tap their fingers on table-tops and other work surfaces in a vain attempt to inject some rhythmic variety into your life? Well stop tapping and start clapping, because all those years of practice may finally pay off! Put your dilapidated digits to good use in this fantastic game of skill, reflex and finger tapping fun. Select the piles of marbles in descending order as quickly as possible with the left, up and down arrow-keys. Every millisecond you hesitate, the more points you lose. You know what the next line is. Don't lose your marbles in this game!