Almost nothing is known about Donpa Kingdom, except that it possesses a monarchy, with Dodon Pa, the President of Donpa Motors, serving as the planet's current monarch. Also given Dodon Pa's presence on the planet, it seems to be inhabited by at least anthropomorphic Tanukis.
- Sumo Digital (21 May 2019). Team Sonic Racing. PlayStation 4. Sega. Area/Level: Chapter 6: The Kidnapping. "Vector: Hmm, it says here Dodon Pa is... the President of Donpa Motors!? / Amy: They're the biggest automobile corporation in the universe. / Vector: There's more. He's also the king of a planet called Donpa Kingdom. Huh, I did not see that coming."