In this game you will have to sum three balls in order to get 10 at first Category to pass every level.

Tap a ball, tap a second ball and tap a third ball to sum the number of every category.

If you want to deselect a selected ball, just tap it again.

The difficulty is increasing in every level.

At level 2 you will see a ball with an interrogation. You have to guest what number is, but you have a button to help you at bottom of your screen.

At level 3 you will be able to use Bombs to random explode some groups of balls.

To change level and category you can tap on left bottom button. In this screen you can swipe to left or right and tap on the level you want if it is unlocked.

Try to pass every level with new time records.

Look for the Help in the App to expand details.