Hold C and press A + B to selectStrength.
Use the following trick to unlock six hidden charactersand Father Strength in Challenge mode. You must highlight acertain character and quickly tap C(3). You can choose which second in the countdown to press C(3). The character unlocked depends on which second is displayed on the timer.
If done correctly, the hiddencharacters will appear. The characters unlocked this way are Moon,Hanged Man, Hermit, Temperance, Tower, and Fortune. You will alsogain ten seconds to the countdown timer, which can increase toa maximum of twenty seconds.