Alternate starting menu
Complete 100% of the game to have a crown appear at the "Press Start" menu.
Bonus song
Play all mini-games and FPS games to unlock a new song in the Tropics trip.
Christmas Music
If you play the game in December or January You can notice that an Christmas music will play in the mode-select menu.
Every costume
Get the high score in every game on Normal.
How To unlock Combat Uniform
Beat the high score in big city fights.
Jukebox songs
Play a song game to unlock its song in the jukebox.
Mini-games
Mini-games are unlocked by playing trips. To unlock all the mini-games, play each trip two times. Note: A Nunchuck controller is required for some trips to unlock their mini-games. You also need to unlock the last trip and play it twice. To unlock the last trip, play all other trips once.
Shooting games
Play all trips to unlock all shooting games. Each trip will unlock a shooting game.
Unlock Funkytown
Play every game once in single player mode.