The game is that strict. Once you’ve completed the Relic Challenges a second time, earning at least the Gold Relic in each, you should receive your 101% completion achievement in Crash Team Racing Nitro-Fueled. If you miss the Gold Relic in even one of the Relic Challenges, you won't be able to get 101% completion. Keep in mind that you’ll need to get at least the Gold Relic in each challenge both the first time you complete the Relic Challenges, as well as the second time for 101% completion. For that elusive 101% completion, you’ll need to jump back in and do the Relic Challenges one more time. Once you’ve accomplished all of the above, you’ll hit 100% completion in Crash Team Racing.

Defeat all bosses in Adventure Mode including Nitros Oxide.

Snag 1st place in all 16 Adventure Mode races.

To elaborate further, you will get 100% completion in Crash Team Racing after you complete all of the following activities. While this is a bit of a no-brainer, it’s nevertheless worth mentioning all steps that count towards 100% completion. To get 101% completion in Crash Team Racing Nitro-Fueled, you’ll naturally need to reach 100% completion first. To ease any confusion you may have, we’ve put together a guide explaining how you can get 101% completion in Crash Team Racing Nitro-Fueled! How to Get 101% Completion in Crash Team Racing The key to getting 101% completion in Crash Team Racing Nitro-Fueled is to earn 100% completion, then do the Relic Challenges a second time while earning a Gold Relic in each.

Specifically, how do you add on that extra 1% of completion?

While 100% completion is straightforward in that it indicates you need to fully complete all aspects of the game from races to bosses, 101% completion can be a bit more confusing. One of the harder achievements to get in Crash Team Racing Nitro-Fueled is 101% completion.

Crash team racing ps1 faq