Blocker is a puzzle game in which you must clear each level by pushing like colored blocks together. Be careful not to clear the blocks in the wrong order, or you might end up with blocks stuck in corners, or blocks that don't match. Scoring is calulated as follows. Each level has an alloted time in which you may receive the maximum score. When this time has expired, you will lose five points for each second longer that it takes you to complete the level.