Happy Cups is a very interesting puzzle game. The rules of the game are very simple. Your task is to turn on the tap and pour water into the cup. You only have one chance, so you have to control the amount of water. If the water exceeds the water level, you have to restart the game. It is worth noting that the first half of the level is relatively simple, but the second half of the level is very difficult. Avoid obstacles, use your imagination and creativity, and fill up all the cups!