Mall World is a game application on Facebook. It's easy to play. Now I'm at the level 98. Just log in and type "Mall World" to search for it or use this link http://apps.facebook.com/mallworldgame/?ref=ts
In the game, you will own a small shop and have to manage it by selling things which are mostly clothes. There are a lot of outfits you can unlock to order. All money you earn is useful because it helps in buying new items and even decorating the display room.
At least 4 friends are required if you want to get free accessories. Join me!