Lab Basement (エヌ・ジン けんきゅうじょ lit. N.Gin's Laboratory in Japanese) is the third unlockable battle arena in Crash Team Racing. It is unlocked by winning all of the cups (Wumpa Cup, Crystal Cup, Nitro Cup, and Crash Cup) on hard mode or by entering a cheat code. It returns in Crash Team Racing Nitro-Fueled, though seemingly larger with more open space, to accommodate more players.
- The cheat code to unlock this arena is: at the main menu whilst holding down and , , , , , , , .
- Originally, this arena was called Maze Malaise.
- It is based on the levels The Lab and Toxic Waste from the original Crash Bandicoot, as well as being similar to the racetrack N. Gin Labs in Crash Team Racing.
- Like Nitro Court, it's a completely flat arena with no points of elevation, and is a simple square consisting of a floor and a series of walls. However, it comes with pitfalls which Nitro Court lacks.