Horrid Henry's Krazy Karts is a side-on racing game from Mobile Pie Ltd and P2 Entertainment Ltd, serving as a digital extension of the British children's media franchise. Players select from six characters, including Henry, Brian, Margaret, Ralph, Peter, and Soraya, to navigate 40 levels set in locations like the School and Gross World. The gameplay loop emphasizes side-scrolling speed, where racers execute tumbles for airtime points and trigger character transformations to sabotage opponents.

The Kart Workshop enables vehicle customization through specific engine choices, wheel types, and cosmetic stickers. Eight integrated bonus games provide access to pranks and power-ups like Smelly Snot Slime and the Snotbag Slinger to disrupt rivals. Local split-screen multiplayer accommodates up to four participants, while a built-in Level Designer facilitates the construction and sharing of custom race tracks. This title secured the NYX Awards Grand Winner distinction for Best Family Switch Game.