The May 2018 Kart Kingdom game update was released on May 7, 2018. Added features include:
- New racing area added.
- Racing gadgets added: Tornado, Backwards, Cheetah, Gust, Horse Power, Snail, and Sticker Blast.
- Racing characters added: Armstrong, Jane, Lucky, Princess Wonderful, Slide, Four, Ace, Flash, Aurora, Chaz, Daisy, Ram, Daze, Diesel, Fang, Frostbite, Lucy, Maxine, Titan, Phantom, Pierre, Pinewood, Pops, and Violet.
- Racing locations added: Spooky Cave, Sunshine Beach, and Glade Raceway.
- Racing bits added: Flag.
- Bortron server added.
- Able to make your password look like dots to avoid children in your area accidentally hacking your account.