Access Endless Mode, Survival Mode, and Combo Challenge Mode.
Unlock all the hidden songs in the game, and buy them from the shop. Upon accomplishing this task, Endless Mode, Survival Mode, and Combo Challenge Mode will be open for purchase in the shop.
10/17/2005
Unlock character costumes
To unlock a character's alternate costume, play Dance Master Mode with that character for about 5 missions, and the character's costume will be available in the shop. Each costume costs 100,000 points except for J.C.'s and Sa-Ja's, which cost 200,000 points
4/20/2006
Unlockable features
To unlock most things, you must do something in dance master mode. Most of the time, you either have to beat a stage while completing a special requirement. To find some special requirements, you can buy them from the shop, but you don't need to buy them in order to unlock the new songs. Here are a few unlockable songs and how to get them so you won't have to buy them: