If you get a highscore, the provided username and your highscore is collected along with a timestamp.
If you do not consent to having any information collected, please click Cancel on the username prompt.
To provide highscore functionality.
The top highscores are accessible to anyone. They are shown here in the Top Scores table. Other highscores are accessible only to Christian for a limited time, until they are removed from the database. This happens automatically on a weekly basis.
Please open up an issue on GitHub.