Hey, sorry you're running into that!
The game is a simple extract-and-run Unreal build, so it should be fully removable. If you’re having trouble deleting it, here are a couple of things that might help:
File permissions: If you extracted it to a protected folder (like Program Files), Windows might block deletion unless you're using admin rights.
Explorer glitch: Sometimes Windows just locks files for no clear reason. Try restarting your computer, then deleting the folder again.