Colored blocks drop relentlessly down to fill the screen. Using your joystick you must quickly spin, shift and align the colors of the blocks in order to clear them from the screen. It's challenging and the pace is demanding! But... satisfaction comes when you see the "ACID DROP" fall and dissolve your highest lines and give you a new lease on life. Need a tougher contest - start from a higher level! Pick your pace from the 30 progressive skill levels. Hours of addictive fun guaranteed!