Crash Team Racing Nitro-Fueled

In this video guide I will show you how to win a cup race in adventure mode and earn all the gems in adventure mode. So both of these achievements are tied together. Once you collect all the CTR tokens you can start racing the cup races. The room is found next to where you face Oxide. The door is unlocked with two keys. So once you have all the CTR tokens you can race in all of them. There will be four races in each to earn the gem. If done on easy it shouldn't be a problem. You will get the cup achievement when earning your first gem. Then once you do all the cup races the other achievement will pop. There are five gems to earn all together.

For the achievement you have to win one of the cup races you unlock near to the end of the story in the Adenture Mode. The Cup have 4 races, you dont have do win all of them, you just need enough points to be on the top after the 4 races.