Christmas Shopping Challenge is a funny game which includes flavours of Math, puzzle and Christmas. Playing this game is very simple. Inside game, you can see 2 panels; on left hand side: Shop Panel and on right hand side: Cart Panel. Click on an item in the shop panel to purchase it. Click on an item in Cart panel to remove it from cart. Purchasing or returning an item will affect the amount of money you have. Your money is displayed on bottom left corner of screen. There are 3 categories of items in this game. To finish a level you need to spend all of your money to buy exact 20 items which include at least 1 from each category.