A booster with an infinity symbol at the bottom and a countdown timer is known as an unlimited booster. This means you can use it as many times as you like within the allotted time.

For visual examples, please see the attached images.

You can earn an unlimited booster through various in-game features, such as the Mission Pass (free column) or the Weekly Challenge.

Once you claim an unlimited booster, it will automatically apply and activate in your game, and the timer will start counting down immediately. Please note that there is currently no option in the game to save, pause, or deactivate the unlimited booster.

An unlimited booster is a powerful tool that can help you conquer difficult levels. We recommend using it to your advantage as soon as you obtain it.

When the countdown timer reaches zero, the unlimited booster will automatically expire, and you’ll return to using regular boosters as usual.