To pop the balloons, run your mouse over them. Red balloons are worth 1 point, blue are worth 3, and gold are worth 5! Sometimes the music doesn't work. If that happens, press stop and try again.
Thanks to @hipposrock07 for the awesome idea! I added music, randomized balloon spawn times and speeds, different point values, music, a new background, a cloud highscore, and some other minor coding changes.