On each level you are given eight letters and you need to score the stated number of points to go to the next level. The bigger the words you make the higher the score. On each level there is at least one work that uses all eight letters. You have a time limit to reach the score. You can choose to spend some time coming up with bigger words or move fast and make a lot of smaller words.
Warning -- if you like word games you may become hopelessly addicted to this game.