NEXT
You can clear the game by tapping the number displayed in "NEXT" and erasing everything. It is a game that challenges how fast you can clear.
LIMIT
If you clear it within the time limit, you will advance to the next stage.
GAME MODE
NORMAL： The numbers are arranged in ascending order, so it is easy to find the numbers.
HARD：The numbers are arranged randomly, so it is difficult to find the numbers.
If you clear "NORMAL", you will be able to press the "HARD" button.