Dance Dance Revolution SuperNOVA

Play Game mode and reach a Boss stage, then get an A rank or higher for the song to unlock in for purchase in the shop.

Go to the "Options" menu. Set the game to an option you need to have activated to complete a mission while doing other missions, for example, "Get Bs on all songs" or "Complete 10 songs".

Finish on Extra Stage on Medium Song Sort with an A or higher.

Get all VIP cards to unlock the secret world 'PizzaBox'.

Finish the Encore Extra Stage with a full-combo.