A top-tier symbol in 'Hold and Respin' bonuses that repeatedly performs its special ability (collect, pay, etc.) on every single spin.

Persistent Symbol is the most powerful and valuable top-tier special symbol found in 'Hold and Respin' bonus rounds.

The core of this feature, unlike a regular special symbol (e.g., a Collector) that activates only 'once' upon appearing, is that it repeatedly performs its special ability on every single respin until the bonus round ends.

This 'persistence' is what pushes the game's potential to its absolute limit.