CTR Challenge

A CTR challenge is a challenge in Crash Team Racing in which the player must collect the letters C, T & R and come in first place to win a CTR token of a specific color. Once all CTR tokens of one color have been collected, the player can enter the corresponding gem cup. For example, collecting all red CTR tokens unlocks the Red Gem Cup, which features the four red CTR races. In the Japanese version the player collects the letters C, B & R because the game was renamed to Crash Bandicoot Racing.

Red Gem Cup
The Red Gem Cup unlocks Ripper Roo as a playable character in single player mode.
 * Crash Cove
 * Mystery Caves
 * Papu's Pyramid
 * Blizzard Bluff

Green Gem Cup
The Green Gem Cup unlocks Papu Papu as a playable character in single player mode.
 * Roo's Tubes
 * Coco Park
 * Polar Pass
 * Cortex Castle

Blue Gem Cup
The Blue Gem Cup unlocks Komodo Joe as a playable character in single player mode.
 * Sewer Speedway
 * Tiger Temple
 * Dragon Mines
 * N. Gin Labs

Yellow Gem Cup
The Yellow Gem Cup unlocks Pinstripe as a playable character in single player mode.
 * Dingo Canyon
 * Tiny Arena
 * Hot Air Skyway
 * Oxide Station

Purple Gem Cup
The Purple CTR tokens are obtained in a different way. The player must enter the battle arenas; Skull Rock, Rampage Ruins, Rocky Road, and Nitro Court to obtain the 20 crystals in the arena before the time runs out. If the player is successful, a purple token is obtained. In the Purple Gem Cup, the player races against all of the bosses excluding Oxide at the same time, in all their respective tracks (Roo's Tubes, Papu's Pyramid, Dragon Mines, and Hot Air Skyway). Winning this cup unlocks Fake Crash as a playable character in single player mode.