If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
In this game you will be cooking your sushi specials for your customers, when a customer comes into your restaurant you should take his / her order then create the order and finally serve up the order. Try not to take too long or the customer will get angry and leave. Cooking sushi is really easy and fast if you know what your doing. If you get it wrong, try again until you learn how to play, once you the game you will have lots of fun.