There are 400 of them, and they need to be cleared using any possible ways. Can you clear all the colorful blocks in this simple game called Collapse 400? The whole screen is filled with blocks with different colors. There are exactly 400 pieces of blocks in this screen and all you need to do is to clear them all by selecting a pair of 2 blocks with the same color. If you select a single block, you will receive a penalty. Clearing huge piles of blocks with the same color will give you points. The game automatically ends if there are no possible moves to be done.