The upper right corner has a ball speed button.Next the game shows your chapter & level numbers, your level score, your level play time, and how many shots you have took on this level.The upper left corner has a settings button which pauses the game and allows you to control game sound and music.Tap the screen with a finger to shoot a ball at the chain.Use your mouse cursor to aim & left click to shoot a ball into the chain.The upper right corner of the welcome screen has a settings button for controlling game sound and volume.The upper left corner of the welcome screen has a full screen mode button.Your web browser automatically saves your game progress including beat levels and level ratings.Within each chapter levels are unlocked sequentially.Press the PLAY button in the bottom center of the welcome screen to bring up the chapter select screen.Clear the levels of balls before any reach the end of the rails.
Shoot balls into the chain to get 3 or more of the colored balls in a row to remove them.