In the Japanese version, a short epilogue was added for each of the characters in the credits.
The Space Bash mini-game arena is a based on the levels "Future Frenzy" and "Gone Tomorrow" from Crash Bandicoot 3: Warped. The background music is also a remix of these two levels' themes.
Demos of the game, found on demo discs and Spyro: Year of the Dragon, contain full versions of the game. The rest of the game besides the demo content is simply locked, but can be accessed through the use of a cheat code. There are many differences between the game's demo release and the final retail game.
In the Japanese version of Crash Bash, in Battle or Tournament mode, hold down R1 + R2 + Left + Down at the same time on the character select screen to unlock Fake Crash as a playable character.