My main user feedback is that I was a bit confused by the controls. For example it wasn't obvious I had to use arrows. Otherwise it's great.
Also, it's amazing you spun this off from a replit bounty project made by a 16 years old dev! Did you order the bounty? I'd be curious to learn more about your experience, such as whether it was hard to find someone, and whether you needed a lot of back and forth on speccing the project.