Gameboy version
The GBC version is drastically different and not comparable to the console versions plus the checkpoints are busted so you can completely break lap times on it. It should be separated as a different game.
edit: this has been sorted thanks to mixmastapj, GBC boards can be found here https://www.speedrun.com/mmv3gbc
Edited by the author
Recent runs
Level: Beached Buggies
Level: Swerve Shot
Level: Cheesey Jumps
Level: Periodic Park
Level: Swerve Shot