The game has different goals that you need to meet to complete levels.

Goal: collecting coins
To achieve this goal, you need to earn a specified number of coins. The better you serve the customers, the more coins you receive. You also need to upgrade the restaurant kitchen, specifically the ingredients—with each upgrade, they earn you more coins.

Goal: collecting likes
To achieve this goal, you need to earn likes from customers. Likes reflect your customers' patience. The better your customers' mood, the more likes you receive.

Goal: serving orders
To achieve this goal, you need to serve a certain number of orders.

Goal: serving customers
To achieve this goal, you need to serve a certain number of customers. However, it doesn't matter what mood they're in when they leave your restaurant.