Jimmy Neutron: Gotta Blast! Rocket Race (partially found online game; 2002)
Jimmy Neutron: Gotta Blast! Rocket Race was an online Nickelodeon racing game released in 2002 that was developed on the 3D Groove engine. Players would enter codes from Nickelodeon merchandise or Quaker Oats products to build rockets and race them on at least four maps. Several game sessions would be played over commercial breaks. Not much else is known about the game since it's been defunct for years.
Interestingly, the game's original page remained up on nick.com (albeit no longer with all of its files) until it was finally removed by February 2017.
On July 12, 2017, a Mega upload was found to have contained the game, but the only course in the game provided was the space course. The other courses remain lost. You also can’t save any changes made to or upgrade your rocket and also can’t look at flight records.