I'm soooo surprised, this game is really good!!!!!!!!
You made a perfect approach to the jam's theme, you took an extremely simple mechanic and gave it a lot of deep. The feeling of speed is super satisfactory and a great reward for mastering the position and direction of the cursor. The visuals are not only cohesive, but also electrifying, I don't have enough adjectives to describe it (sorry, I'm not an english speaker haha). You even took the time to add a time ranking system, it duplicates the game's content encouraging the players to improve the strategies to complete the levels.
For future iterations (if you want to create and extended version or try with another similar game), try to increase the twists or new mechanics of the levels and interactions with the environment. That will keep the game fresh with new ideas and challenges for the players. Now you're able to create something easy to understand but extremely deep to master.
Great job! for what I know about Unity (which isn't a lot), I have no idea how you managed to develop something like this, so I really admire your work. Keep doing it well.