Nicktoons Racing - Cup 3 (Stimpy - Easy)

The Rugrats and Real Monsters tracks here are quite decent, but the other two tracks have some awkwardness built into them. (The shortcut on the Rugrats track near the end is also pretty janky from my experience) The Hey Arnold track also has cases where the CPU gets stuck (because they keep boosting into a car) and it can be tricky to get your bearings. Congo Bongo Bang Up is just a poorly coded mess IMO, using the shortcut as intended isn't worth the risk, the characters' positions constantly change resulting in weird placements by the end, and the turns aren't suited for a game with these physics.
Also I wonder why Ren didn't make it to the game. The only other game where Stimpy is without Ren is Attack of the Toyboys on console but that at least has the excuse that Stimpy is a guest character there alongside the other 3.