Costume Party is a "build it yourself"-style Platform Game by Hamumu Software and is the company's first dip into "online centered" gaming, which was a Halloween surprise. In similar fashion to Little Big Planet, the entire game consists of user-created levels that vary a lot in terms of quality, design and challenge. The basic object of every level is to get to the exit after getting all the required collectibles (candy corn, to begin with). The player character is a Kid Hero who can change into various costumes with the help of various costume cards, all of which boast various abilities ranging from hiding in the shadows to breaking bricks.