Wario Ware Inc. Mega Party Game$ Unlockable: Single Player Mini-Game
Collect roses in every mini-game in Practice mode. You'll open the final door in the single player mode that leads to a run through of all the mini-games.
Wario Ware Inc. Mega Party Game$ Unlockable: Sound Test
Play every multiplayer mode once.
Wario Ware Inc. Mega Party Game$ Unlockable: Sound Test Mode
Compete in each of the multi player modes at least once to unlock the sound test in options.