Your goal is to make a perfect copy of the image in the upper right corner! To start painting, click on a color tile and drag it onto any block. You can even drag tiles onto blocks that are already painted. The arrows on the tile show where the color will spread once the tile is placed.

Some levels have grey arrow blocks on the board. When you send paint through them, the paint will continue to spread in the direction the arrow is pointing. The swirly blocks are portals which will transport paint directly to another portal on the board.