The Green Gem Cup is a series of races featured in the Adventure Mode of Crash Team Racing (as well as Crash Nitro Kart), with an accumulating score for each race.
The cup is unlocked after winning the four CTR Tokens of the respective color. Winning the cup rewards players with the Green Gem.
- Hub World Area Gem Stone Valley
- Rewards Green Gem; Unlocks Papu Papu as a playable character (in the original Crash Team Racing)