The box arts of Japanese Crash Bandicoot localizations have historically used a redesign for Crash with larger eyes. This has been done for all games except for the "Titans" sub-series, which had its own distinct Crash design, and the Toys for Bob-developed games.

However, the only games that feature the design in-game for the Japanese localizations are the Japanese-developed Crash Boom Bang!, and Crash Tag Team Racing, which had a skin system that allowed Japanese Crash to appear abroad as well. A good chunk of Crash's costumes in Crash Tag Team Racing also got Japanese versions, though these combination costumes were not included in the Western release.

Every single song in the Crash Twinsanity soundtrack is fully acapella, regardless of its genre or tone, with no instrumental backing, using human voices for every single instrument, including electric guitars.

The scat group behind Twinsanity's score, Spiralmouth, would return for Crash Tag Team Racing, but the tracks in Tag Team Racing had proper instrumentals with acapella vocals.

A member of the Crash Mania community called JumpButton was the first person to e-mail Darren Esau, who had left his e-mail address in Dr. Cortex and N. Gin's credit comments (available to listen only in the NTSC version). Darren Esau jokingly stated in his reply that "[JumpButton] disproved his theory that the only people who read video game credits are the developers themselves."

This game was originally going to be developed by Traveler's Tales Oxford (developers of Crash Twinsanity), and was actually going to be called 'Crash Clash Racing.' It had the same concept as the final game; fusing two cars together. According to one of the project's developers going by the alias FakeNina:

Pressing X or triangle on the loading screen will produce burping and farting noises.