You are bartender in a tavern, the tavern is currently empty but you feel like something is odd. You continue to work normally and out of nowhere, a large amount of people storm you bar, all of them ordering just one thing, water. While you are confused about the situation you have no time to ask questions, you simply need to serve all of them as fast as possible before it gets too crowded.
Gameplay:
Press on the grey circle to pick up an empty glass and then on the Red or Blue circles to fill it with hot / cold water. A circle above each customer head will appear showing how they want their water (Cold or hot). If there are too many customers, you will lose the game.