N. Gin Labs (スーパー かそくトンネル lit. Super Accelerating Tunnel in Japanese) is the 13th race course in Crash Team Racing. It is part of Citadel City and is based on the levels The Lab and Toxic Waste from Crash Bandicoot. The unlockable battle arena, Lab Basement, is very similar to this track. As its name suggests, it is N. Gin's home track. It features many small jumps, as well as one large, a giant rolling barrel which can squash racers, possibly knocking them off the track, and a very long tunnel full of turbos. In time trial mode, it has the largest amount of time boxes compared to the other tracks in the game.