Link to your Game Design Doc on Google Drive.
https://docs.google.com/document/d/1pdGtVhMWEYshR_-XrBGg1_Hn3pqeYp91kSVKGabXci8/edit?usp=sharing

Have you checked that your GDD is publicly accessible ?
Yes

Is your game set to public on itch.io so we can see it?
Yes

Summarise your game!
Kart Wheel is a fast-paced, 3D tower defense game in which you control a runaway kart wheel. Your objective is to defend the tower at the center of the map from hordes of undead monkeys for as long as possible. You are the weapon—the only way to stop the monkeys is by running them over—and you can survive longer by moving efficiently with drifts and speed control, and using power-ups that spawn throughout the map.

Please explain how your game fits the theme:
The player controls a runaway kart wheel, which is the weapon used to stop the hordes of undead monkeys from destroying the tower. To keep with the theme, we really wanted some unorthodox controls, to give the sense that the player really is directly controlling the weapon. In our case, that manifests in forward/backward movement being much more responsive than turning.