You'll never run out of challenging fun since there are so many levels for you to complete, and each one has a different group of letters for you to link. But if you are stuck, don't worry; you can always use hints to reveal random letters or hammer power-ups to reveal a letter of your choosing. Both of these options are available to you whenever you get stuck. You'll have the opportunity to gather a variety of images of the world's wonders as you make your way through the stages of the game. Have a good time at Kiz10.com playing any of the free Brain games.