To b

The basic gameplay 】 1. BDPQ by sliding up and down or so four letters transform each other. 2. By a stroke will play all the letters to flip for the same letters. "Advanced play" Game is divided into the To b, To d, the To p To q, To BDPQ five big difficulty level, corresponding rookie, skilled, professional, master model and the fairy. Each difficulty level play a slightly different, the immortal model may is the real play of the game, the difficulty is very abnormal condition.