This game is a puzzle game where players need to draw lines to pour water into a cup. Games usually set cups of different shapes and angles, and players need to draw lines reasonably based on these shapes and angles to ensure that water can flow smoothly into the cup. This game not only tests the player's observational and logical thinking abilities, but also requires a certain level of hand eye coordination. This type of game can usually be played on mobile phones or tablets, and is a relaxed and fun casual game.