CTR Challenge

A CTR challenge in Crash Team Racing means the player must collect the letters C, T & R and come in first place to win a CTR token of a specific colour. Once all CTR tokens of one colour, e.g. once all Red CTR tokens have been collected, you can enter the Red Gem Cup. This cup features the four Red CTR races. In the Japanese version the player collects the letters C, B & R because the game was renamed Crash Bandicoot Racing in Japan.

Red Gem Cup:

Crash Cove

Mystery Caves

Papu's Pyramid

Blizzard Bluff

The Red Gem Cup unlocks Ripper Roo.

Green Gem Cup:

Roo's Tubes

Coco Park

Polar Pass

Cortex Castle

The Green Gem Cup unlocks Papu Papu.

 Blue Gem Cup: 

Sewer Speedway

Tiger Temple

Dragon Mines

N.Gin Labs

The Blue Gem Cup unlocks Komodo Joe.

 Yellow Gem Cup: 

Dingo Canyon

Tiny Arena

Hot Air Skyway

Oxide Station

The Yellow Gem Cup unlocks Pinstripe.

The Purple CTR tokens are obtained in a different way. You 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 you are successful, you'll obtain a Purple CTR token. In the Purple Gem Cup, you race all the bosses excluding Oxide at the same time, in all their races (Roo's Tubes, Papu's Pyramid, Dragon Mines and Hot Air Skyway. Winning this cup unlocks Fake Crash.