- ZPL for Retro Rewind and Custom Tracks
- KappASA for the Custom Character Textures
- Glitch_Wuz_H3R3 for Celebi
- ALE for Super Sonic
- Numerosity for Tour Singapore Speedway
- Jiyuu and Manon for Bowser's Castle Secret Route
- TheGanmingBram for Wii U Mount Wario
- BigOto2 and MEGAKart69 for Pipe Underworld
- Todette Hack Fan for Hacked Treeway
- JorisMKW for Desert Fort
- Multimariokartds for Castle In The Sky
- SpyKid for Obstagoon's Palace
- Sucht93a for Melting Magma Melee
- Renegade Clara and ChaosShadow23 for Cherry Blossom Gardens
- Luke Chandler for Boshi Skatepark
- MEGAKart69 for Castle of Darkness
- Keiichi1996 for Undiscovered Offlimit