Once a high score submission has been verified on Twin Galaxies, it cannot be edited or deleted by the player who submitted it. This policy is in place to maintain the integrity of the leaderboards and the records within the Twin Galaxies community. Once a score gains verification, it becomes part of the official history and is preserved for transparency and authenticity. However, players have the option to submit new scores or achievements that will be considered alongside existing records. This means that if a player achieves a higher score or completes a new challenge, they can create a new submission to update their standings on the leaderboard. For additional details or questions regarding submissions, players may want to explore the relevant sections on the official Twin Galaxies website, as they provide comprehensive guidance and updates on submission processes and rules.