Hi Artur, thank you so much for reporting this bug. I have played viruskiller around two years ago in jessie and the highscores are saved. Now, I have just played viruskiller again and all my highscores are saved. Take into account that there are three highscores classifications, one for each difficulty level. I am tagging this bug as unreproducible and I will close it when I play again when I upgrade to the next stable version (buster).
Please, let us to know whether you are still suffering this bug. Regards, Jose
