Hundreds of the levels with unique glass and problems. The rule is you can touch once on the screen to draw a line. You have limited time to draw the line. Once you pick up your finger, then you can’t draw anymore. So you have to choose wisely what you need to draw and in proper allowed time in that level. The line will be converted into a rigid body and tap water then can flow on it. So you have to draw the lines in such way so that all the water goes into the glass and make your glass the super smile glass happy. Obviously it’s gonna be a time management game as well. You have to meet the ticking clock speed to draw our line. Draw Lines To Fill Up Glass.