Install the update to System Memory (NAND), not the SD card, to reduce loading screen stutters in Electron Avenue.
Here is the painful truth about : The update files contain the data for all the characters, but the unlock is tied to an online server that no longer exists (the Pit Stop was shut down in 2021). Crash Team Racing Nitro-Fueled -NSP--US--Update...
With all updates applied (the final March 2020 "Beenox Pack"), the game is packed with content: Install the update to System Memory (NAND), not
retains the original’s "Power Slide" and "Turbo Boost" mechanics. This system requires rhythmic timing and map knowledge, rewarding players who master the "triple boost" with blistering speeds that make other kart racers feel slow by comparison. Content and Customization This system requires rhythmic timing and map knowledge,
Unlike other racers that use "rubber banding" to keep races close, CTR is a pure skill-based experience.
Mastering this system is the difference between casual play and conquering the difficult Time Trials against Nitros Oxide. The Importance of US Updates
Access to the Pit Stop shop and the Cup Races.