Crash Tag Team Racing [NDS]

Baby Crash costume:
Collect all the Die-O-Ramas.

Crash's Evil Crash costume:
On Mystery Island, look behind Cortex to find an owl-shaped lamp. Use the body-slam switch to raise the lamp, then enter the revealed cave and run to the right. Talk to the Drone at the top of the small island and buy the costume for 2,000 Coins.

Crash's Skeleton costume:
Talk to the Astro Land worker near the stunt arena and buy the costume for 4,000 Coins.

Second tier kart weapons:
Spend 500 coins at Midway to buy the second tier kart weapons.

Third tier kart weapons:
Spend one Power Crystal at Midway to buy the third tier kart weapons.

Play as Crunch Bandicoot:
Give Crunch Bandicoot 2,500 Coins at Midway.

Play as N. Gin:
Give N. Gin the Green Plutonium at Midway.

Play as Nina Cortex:
Giver Nina Cortex the keys at Midway.

Play as Pasadena Opossum:
Give Pasadena Opossum one Power Crystal at Midway.

Play as Von Clutch:
Give Von Clutch one Power Crystal at Midway.