Các điều khiển game:
Bị mắc kẹt? Xem cách hoàn thành trò chơi
This glass is happy because it always filled with water, but today it lost all it's water, so it becomes sad. now you are the only person can save it, draw a line to make the water flow down, if the glass filled with water, it will become happy again. there are many levels waiting for you, Have fun!