I've delved into the files of the game and apparently the file that's giving me trouble is called ';. Full file is "lib/python3.9/multiprocessing/';". It won't delete no matter how many times I try and thus causes whatever files contain to not be deleted and it says it's not accessible.
Tried to delete the game from my USB where I downloaded it, but a part of the game just won't delete and I don't know why. I fear there may be a virus or something.