Click green flag and use left and right arrow keys to move the black hole. If the hole catches the red ball you earn 3 points. If it catches the gray ball you lose 3 points. If you catch the black ball you earn 1 point. The more points you have the faster the balls move. Once you earn 100 points or more the game ends.
Thank you @fharrisonmcdougall1 for most of the coding!!! I'm really bad at it.