Boom is a spin off of the classic arcade game Missile Command. The object is to defend your base (located in the bottom-center of the screen) from a slew of incoming enemy missiles. Most enemy missiles are fired in random directions and may not hit the player’s base. Others are equipped with precision targeting systems combined with greater payloads to ensure a direct hit and the destruction of the base.

http://code.google.com/p/boom-mobile/