Bunny Hill now has leaderboards on speedrun.com ! Go compete against the world's fastest in a slew of different categories. You can find it here: https://www.speedrun.com/bunny_hill
The most sensible categories are the Level Categories, as they correspond to each course.
I had help from my cousin setting this up and we are also looking for moderators! If you are actively planning to speed run the game reach out after you've posted some verified runs at [email protected]. We will vet the mods and make sure people are following the rules!
Hope you have fun competing for number 1!