Combo Orders are orders served within a limited time. You can see the time limit on the small timer with blue bars—to complete the combo order, serve several dishes while the bars are blue.
Completing combo orders allows you to earn more coins. Combo orders can consist of 3, 4, or 5 dishes that must be served to customers as quickly as possible.
x3 dish combo order = +2 coins;
x4 dish combo order = +3 coins;
x5 dish combo order = +5 coins.