Too much fun in this great Happy Filled Glass game. Make the glass happy by filling it to the brim with water. But various obstacles will appear between the tank and the tap. To avoid them, you must draw a line in the right place, which will become the saving gutter. Water will flow over it directly into the glass. Remember that our magic pencil at a level can only draw one line and no more, so think carefully about where you want to see it.