Mario Hoops 3-on-3 Unlockable: Ninja
Win the Rainbow Cup.

Mario Hoops 3-on-3 Unlockable: Birdo
You must finish Hard Mushroom Cup.

Mario Hoops 3-on-3 Unlockable: Hard Mode
You must finish the Rainbow Cup in the Normal Tournament.

Mario Hoops 3-on-3 Unlockable: Paratroopa
You must complete Mushroom Cup.

Mario Hoops 3-on-3 Unlockable: Watermelon
You must win a Gold in Flower Cup.

Mario Hoops 3-on-3 Unlockable: Flower Cup
Finish the Mushroom Cup.

Mario Hoops 3-on-3 Unlockable: Star Cup
You must finish the Flower Cup.

Mario Hoops 3-on-3 Unlockable; Star Ball
You must collect Gold in Star Cup.

Mario Hoops 3-on-3 Unlockable: Yoshi Egg
You must collect the Gold in Mushroom cup.

Mario Hoops 3-on-3 Unlockable: Flyguy
You must complete Hard Star Cup.

Mario Hoops 3-on-3 Unlockable: Rainbow Cup
You must finish the Star Cup.

Mario Hoops 3-on-3 Unlockable: Daisy's Alternative Costume
Complete Flower Cup.

Mario Hoops 3-on-3 Unlockable: Goomba Ball
You must get Gold in Hard Star Cup.

Mario Hoops 3-on-3 Unlockable Peach Alternate Costume
Finish first in the mushroom cup.

Mario Hoops 3-on-3 Unlockable: Yoshi's Alternative Costume
You must complete Hard Flower Cup.

Mario Hoops 3-on-3 Unlockable: Gold Ball
You must acquire 5000 points in the profile.

Mario Hoops 3-on-3 Unlockable: Black Mage Outfit

To unlock the secret Black Mage outfit, get a gold in the Rainbow Cup.

Mario Hoops 3-on-3 Unlockable: Moogle

To unlock a Moogle, finish the Star Cup and obtain a Silver Trophy.

Mario Hoops 3-on-3 Unlockable: White Mage

To unlock a White Mage, finish the Rainbow Cup and earn a Silver Trophy.

Mario Hoops 3-on-3 Unlockable: Cactaur

To unlock Cactaur, get 800 or more points in the normal Star Tournament.

Mario Hoops 3-on-3 Unlockable: Rainbow Ball/Pumpkin Ball

To get the Rainbow Ball, you must defeat someone else on exhibition mode on DS Wireless Play 5 times. To get the Pumpkin Ball, you must lose to someone else 5 times instead of winning 5 times on DS Wireless Play.