Title Screen Fun
The characters in the game are shown on the title screen. If you point the Wii Remote at any character, they will talk and make various noises.

Blooper & Hammer Brother
To unlock Blooper: you must beat the Star Battle with any regular character.
To unlock the Hammer Brother: you must defeat the Star Battle with Blooper.

Bowser's Warp Orbit
You must complete the Star Battle with any character to unlock.

Minigames
You can unlock the following minigames :
Crown Showdown - Unlock one minigame in each of the following modes: 1 v 3 player, 2 v 2 player, 4 player, and Duel.
Flip Out Frenzy - Unlock any 4 player minigame.
Test For the Best - Unlocked by purchasing it in the Fun Bazaar for fifty CCs.
Tic-Tac-Drop - Unlock any Duel minigame.

Trade Bazaar Purchases
The following can be bought at the Trade Bazaar with the listed amount of Carnival Cards…

Board Sounds	50 CCs
Carnival Figures (30 Total)	30 CCs
Character Voices	50 CCs
Chomping Frenzy	50 CCs
Credit Roll	100 CCs
Heckling Sounds	50 CCs
Minigame Sounds	50 CCs
Moped Mayhem	50 CCs
Puzzle Pillars	50 CCs
Staff Record	50 CCs
Table Menace	50 CCs
Test For the Best	50 CCs
Very Hard Difficulty	50 CCs