There is an insane amount of different versions of this game! I believe there are over 25 different version if you count the different regions as well. To the best of my ability, I will try to list differences between versions I'm familiar with here. The Dreamcast [NTSC-U] version is the original port, and all differences from this version will be listed. As far as I know right now, the Dreamcast NTSC-U and Dreamcast NTSC-J versions are the fastest versions to run on.

Gamecube [NTSC-U]

• There is a rumble on/off toggle option below the menu option in the pause menu.

PC [Steam]

• Pausing and exiting back to the menu in a Crazy Box challenge takes you back to the main menu, not the Crazy Box submenu.

Dreamcast [PAL]

• Runs at 50 FPS, which means it's slower in real time.

Gamecube [PAL]

• Runs at 50 FPS, which means it's slower in real time.