Late to the party, but I think the robot dinosaurs also serve as a subtle nod to Digimon, which makes sense given Waluigi technically shares his courses with Mametchi as they contain the only Tamagotchi references besides his playability, and Digimon was directly derived from Tamagotchi.
Actually that’s kind of true end it also kind of gives the same thing as The second and 64 quart racing game do you know if daddy Kong the first appearance of banjo kazoo Wii you get What I mean