Block Treasure

Block Treasure is one of four randomly selected bonus stages after completing a World in Dance Dance Revolution: Mario Mix. In this minigame, the player has to step left and right on the Dance Pad to have Mario or Luigi move to choose a block then step up repeatedly to jump and hit the blocks for items. The blocks may either be empty, have one coin, have ten coins, have a 1-Up Mushroom, or have a Spiny which will shrink Mario or Luigi.

In-game description
When life gets hard, blow off some stream by punching bricks, Anything could shake loose!