Access the Dictionary and change the language from Spanish to English, then search for the word "cheat." Tap the "V" near the definition to open a conjugation chart, and hold L+R for a few seconds. You should hear the word "Cheat" pronounced in English, your cue that the cheat is activated. To utilize it, return to the Main Menu and select Options, then Sound. Here, you can press R to advance a single lesson, or you can press L to advance to the start of the next group of lessons (there are around 50 lessons per group, on average).