It is a game by pressing the arrow button, to "A" panel of all efficiently.

Each time you press the button, panel and A → B → C → A · · · will change.
To (all A) A panel of all the 16 pieces, how many times the button at least do would be to push.

Many times if I press the button appropriately, it will be straight A's at some point.
But, So useless.
The ♪ let's aim at the all-in button A minimal number of times as possible

It has to be a small number of times unexpectedly.

Let me introduce everyone to write a review good record comes out!