Note: Theese are the requirements to unlock the skins in the Japanese version of the game; some of the requirements to unlock skins in the North American version of the game have been changed.
45 Degrees: Successfully complete all normal puzzles in puzzle mode.
Aback: Play level 40 in challenge mode.
Auto Mobile Industry: Successfully complete level 2 in vs. CPU mode.
Big Elpaso: Play level 70 in challenge mode.
Brash: Successfully complete level 8 in vs. CPU mode
Chinese restaurant: Successfully complete level 9 in vs. CPU mode.
Da-Di-Do: Play level 52 in challenge mode.
Dark Side Beside The River: Play level 36 in challenge mode.
Fly Into The Sky: Play level 95 in challenge mode.
Get up and go: Play level 90 in challenge mode.
Holiday In Summer: Play level 60 in challenge mode.
I Hear The Music In My Soul: Play level 32 in challenge mode.
Japanese Form: Successfully complete level 1 in vs. CPU mode.
Just...: Play level 28 in challenge mode.
Lights: Play level 100 in challenge mode.
Meguro: Play level 80 in challenge mode.
Mekong: Successfully complete level 5 in vs. CPU mode.
Moon Beam: Successfully complete level 10 in vs. CPU mode.
Morning Completes: Accumulate 20 hours of game play.
My Generation: Play level 75 in challenge mode.
Please Return My CD: Successfully complete level 3 in vs. CPU mode.
Prime Factor: Successfully complete all X2 puzzles in puzzle mode.
Rodent: Accumulate 10 hours of game play.
Round About: Play level 8 in challenge mode.
Shake Ya Body: Play level 16 in challenge mode.
Sister Walk: Play level 48 in challenge mode.
Slipping: Play level 12 in challenge mode.
Spirits: Play level 85 in challenge mode.
Square Dance: Play level 20 in challenge mode.
Strangers: Play level 56 in challenge mode.
Take A Dog Out A Walk: Play level 65 in challenge mode.
Talk 2 You: Play level 24 in challenge mode.
The Bird Singing In The Night: Successfully complete level 4 in vs. CPU mode.
The Spy Loves Me: Successfully complete level 7 in vs. CPU mode.
Tin Toy: Successfully complete vs. CPU mode.
Urbanization: Play level 4 in challenge mode.
Water, Flower, And Lights: Get 999,999 points in challenge mode.
Whoop-De-Do: Successfully complete level 6 in vs. CPU mode.
Working In The Hole: Play level 44 in challenge mode.
