So i put everything on the feather in the correct folders and deleted the same files as shown in the video, when i plug the feather ino my computer the light is solid green for a couple seconds then it turns and stays solid white, did something go wrong?

A solid white status light means the REPL is running. Do you get the same behavior if you run it off a battery or phone brick? I would double-check and make sure the ray gun code was installed properly.