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From kengo utsunomiya:
1. Input your name.2. Tap 'PLAY' to start game.3. Tap Number Field and pick the numbers from 1-9 for "Easy" play, or 0-9 for "Hard" play.(choose different numbers).4. Tap 'CHECK!' to check the answer. If you chose collect number at right place, you get Hit(H). if you chose collect number but wrong place, you get Blow(B). Revise numbers accordingly by those crews, and tap 'CHECK' again! If you get all HIT 3, game cleared! *To see the history which you have tried, tap the 'History' button on number button field. (Only 10 history can show)Now let's get try!