[THIS VERSION OF THE PROJECT HAS A WEIRD GLITCH WHERE THE BALLOONS VIBRATE WILDLY WHEN THEY ARE IN THE SAME X OR Y AS THE MOUSE.] Move your mouse around to drive the balloon. To change the colour of the balloon, click on it. You can also change the amount of balloons by pressing the number buttons 1 to 3, which can also change colour by clicking them. Each balloon has different speeds: 2 being the fastest and 3 being the slowest.
Thanks to hallo-people for fixing the glitch.