debuging is were you mess with the circuit bord and let it give you any character you want and the option to speed through its life. if you do this there is a small chance of breaking your tama. t 

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                                                        Take off back

                                                    Remove 4 tiny screws

                                                            Find the word debug over the small circle

                                                rub gently with pencil  then put back together

                                                            why debug?

                                                                                                   because you can choose witch ever tamagotchi you want.If you do not have a debuged tama and you get Mimitchi and you didn't want her(no offense I love Mimitchi)and you wanted Memetchi with a debuged tama you can get Memetchi.Isn't that cool?