A free program for Android, by pascal inc..

If you want to test your aim, you can play a darts game called “Black Jack”.

In this game, you can use one finger to flick the screen to throw a dart. You can aim by dragging the screen, and you can also change your aim by flicking the screen and dragging it in the direction you want.

When you throw a dart, it will go through the board, and if it hits a number, it will add that number to your score. You can play with different players, and each time you play, you will meet a new player.