Nickelodeon Kart Racers 3: Slime Speedway builds on the gameplay established in previous series entries. Players must race around a track and attempt to come in first place, using items scattered on the track to hinder opponents or techniques such as drifting and midair tricks to gain speed. As in the original Nickelodeon Kart Racers, vehicles will transform into watercraft at predetermined points in the race to continue progressing through the track.[1] The "pit crew" system from Nickelodeon Kart Racers 2: Grand Prix returns, which allows players to equip special characters before each race that grant them active and passive abilities. These abilities can be activated once the player fills a meter by driving through a sufficient amount of slime on the track. Up to 90 pit crew characters can be unlocked in Slime Speedway. All of the core gameplay modes from the previous game return, including the "Slime Scramble" Grand Prix; Free Race; Time Trial; Challenges; and Arena.[2]
Slime Speedway includes a base roster of 40 playable racers from various Nicktoons, with two additional characters available as downloadable content.[2] Character karts can be customized using a variety of different parts, each of which affects the kart's gameplay statistics such as speed or handling. While each kart body was tied to a specific character in the previous games, Slime Speedway allows any character to use any kart body.[2] In addition to karts, characters can now ride bikes as well.[1] The game features 36 race tracks, 16 of which return from the previous game.[2] New racers, pit crew and vehicle parts can be unlocked by winning cups in Slime Scramble, completing challenges, or purchasing them with slime tokens at the in-game garage. Slime Speedway supports both four-player local split-screen multiplayer and online multiplayer for up to 12 players.[1]
Nickelodeon Kart Racers 3: Slime Speedway was initially leaked by Best Buy on July 8, 2022,[3] before being formally announced later that day.[2] A trailer for the game was released on September 12, 2022.[4] Unlike previous Nickelodeon Kart Racers games, Slime Speedway features full English voice acting for all of the game's characters, excluding JoJo Siwa.[2]Slime Speedway marked Janet Varney's final performance as Korra, choosing to retire from the role shortly thereafter to allow an actress of color to take her place.[5]
The game was originally announced to be released on October 7, 2022, but was later delayed one week to October 14.[1] Players can also purchase the "Turbo Pack" downloadable content separately or packaged with the "Turbo Edition" of the game. The pack includes two additional playable characters, Zuko and "Eastman & Laird" Raphael, along with additional crew characters and vehicle parts.[6]
Nickelodeon Kart Racers 3: Slime Speedway received "mixed or average" reviews according to review aggregatorMetacritic.[7][8][9]Shacknews appreciated the number of characters, tracks and modes, but ultimately called it "as average of a kart racer as it gets."[10]Nintendo Life praised the character roster, customization and addition of voice acting, but heavily criticized the performance of the Switch version, saying that it runs "with a severely reduced frame rate compared to its predecessor, making everything feel more sluggish as a result."[11]
