Go to the dictionary and look up the word "cheat". Touch the "V" next to the verb to open the conjugation chart. Hold the L and R triggers for a few seconds. If done correctly, you will hear the word "cheat" in Mandarin. The cheat has now been activated. Now to use the cheat, you must return to the main menu, go to Options, then Sound. Pressing R will advance you 1 lesson, and pressing L will advance you to the beginning of the next lesson group (usually every 50 lessons). Now beware, once this cheat has been activated, it is saved to your profile, and can't be turned off until you delete your profile. And there's no way to go back to previous lessons that you skipped over. Sure, you can visit the skipped lesson from the lesson map, but there's no lesson map once you get past lesson 100.