There are 14 playable characters in this game including Blooper and Hammer Bro.

Unlock Blooper:
On Normal difficulty setting complete Star Arena Battle.

Unlock Hammer Bro:
Using Blooper on Normal difficulty setting Complete Star Arena Battle.

Unlock Bowser's Warp Orbit
Using any character complete Star Battle mode.


Unlockable Mini-Games
Complete the following tasks to unlock the corresponding effect.

Unlock Mini-Game Wagon:
Complete Star Battle mode to unlock the Mini-game Wagon which allows you to buy mini-games.

Unlock Tic Tac Drop Mini-Game:
Unlock one Duel mini-game.

Flip Out Frenzy Mini-Game:
Unlock one 4-Player mini-game.

Unlock Crown Showdown Mini-Game:
Unlock at last one mini-game in the 4-Player, 1 vs. 3-Player, 2 vs. 2 minigame and Duel minigame categories.

Unlock 'Test For The Best' Mini-Game:
In the Fun Bazaar unlock 'Test For The Best' mode.

To unlock the following features in the game trade 'Carnaval Cards' at the Fun Buzaar.

Unlock Board Sounds:
At the Fun Bazaar buy it for 50 Carnival Cards.

Unlock Character Voices:
At the Fun Bazaar buy it for 50 Carnival Cards.

Unlock Chomping Frenzy:
At the Fun Bazaar buy it for 50 Carnival Cards.

Unlock Heckling Sounds:
At the Fun Bazaar buy it for 50 Carnival Cards.

Unlock Minigame Sounds:
At the Fun Bazaar buy it for 50 Carnival Cards.

Unlock Moped Mayhem:
At the Fun Bazaar buy it for 50 Carnival Cards.

Unlock Puzzle Pillars:
At the Fun Bazaar buy it for 50 Carnival Cards.

Unlock Staff Record:
At the Fun Bazaar buy it for 50 Carnival Cards.

Unlock Table Menace:
At the Fun Bazaar buy it for 50 Carnival Cards.

Unlock Test for the Best:
At the Fun Buzaar Buy-it for 50 Carnival Cards.

Unlock Very Hard Difficulty:
At the Fun Bazaar buy it for 50 Carnival Cards.

Unlock Credit Roll:
At the Fun Bazaar buy it for 100 Carnival Cards.

Unlock Star Carnival-Related Carnival Figures:
At the Fun Bazaar buy 1 of the 6 for 30 Carnival Cards.

Unlock Minigame-Related Carnival Figures:
At the Fun Bazaar buy 1 of the 12 for 30 Carnival Cards.

Unlock Board-Related Carnival Figures:
At the Fun Bazaar buy 1 of the 12 for 30 Carnival Cards.

Unlock Carnival Figures:
At the Fun Bazaar buy at least 1 Carnival Figure at the Fun Buzaar

Unlock Carnival Parade:
At the Fun Bazaar buy at least 1 Carnival Figure at the Fun Buzaar

Unlock Any Mini-Game:
At the Fun Bazaar Mini-Game Wagon buy 1 of the 72 mini-games for 50 Carnival Cards.