The object of the game is to get points, you get points by collecting stars. But there's a special start that gets you 3 points. If you get the color flashing star you get 3 points. To move the Scooba-Diver, just move your mouse around. Beware of one octopus though, the more points you get the more faster the octopus gets.
I credit my teacher Mrs Garton who used the coding games book for scratch.