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From David Leblond:
The goal of Claustrophobia is simple: keep the blocks from crossing the center line. Do this by firing blocks upward or downward and clearing adjacent blocks of 3 or more of the same color. But beware, these blocks don't float! So if any of the blocks on the top suddenly lose the block above them, they'll fall. And that can cause problems for the bottom rows of blocks! Battle it out in a color matching tug of war! Connect with another player with either the full version of Claustrophobia or this Claustrophobia Battle Client via Bluetooth! Some things said about the full version of Claustrophobia: "The puzzle-like nature of the falling blocks is so much more than a color matching game... & as I stated before, the new Bluetooth 2 player mode just takes the competition to a whole other level. I HIGHLY recommend." "Claustrophobia is one of those games that just hits you over the head, and you may not know why, but you keep coming back for more." "Permanent spot on my home screen." NOTE: If you are having trouble with the blocks going where you need them, I strongly suggest going into Settings and turning on "Allow Tapping." This allows you to "tap" where you want your block to go (you can still hold down your finger and aim) that way you don't have to do the "flick" maneuver. This seems to make things a lot easier.