Ratz

A Franco-Canadian animated series.

Two rats, Rapido and Razmo, are stowaways on the S.S. Wanderer, a cargo ship transporting a huge amount of Gouda cheese. When they're not dealing with the current crisis (often due to themselves, the crew or temporary passengers/cargo), they race throughout the ship using "ratboards", makeshift flying racecars.

Tropes used in Ratz include:

Blessed Are the Cheesemakers
Captain Oblivious: The Captain of the ship, appropriately.
Cartoon Cheese: It's more holey than Gouda usually is.
Deranged Animation
Flying Car/Hover Board: The ratboards.
Hey, It's That Voice!: French comedic duo Eric et Ramzy provided the voices in the version aired in France. The Canadian airing featured Terrance Scammell (Tripping the Rift, Arthur, Samurai Pizza Cats) as Rapido.
Homemade Inventions: The ratboards seem to be made by strapping jet engines to mousetraps, but an episode shows that the rats don't know what an actual mousetrap is.
- Razmo is a mechanic and creats various gadgets over the course of the series.
Red Oni, Blue Oni: Rapido wears red and Razmo wears blue. Razmo does lose his temper on occasion, however.