The challenge is not so great at the beginning of the game, but I doubt that you will be able to go from level 20 upwards. You can challenge some family / friend to compete with you, and see who can get the highest score. In Color Guardian, you must memorize a sequence of colors that will be shown and make the highest score possible. A fun game involving colors and your memory. How about a little brain training with a fun memory and color challenge. Decorate, hit and win.
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