Unlimited lives allow you to play levels within a stated time limit without spending your lives if you lose. In other words, you don’t lose a life if you fail to pass the level while the unlimited lives bonus is active.
You can get unlimited lives as a part of the comeback reward or by participating in events and competitions.
Please note:
The timer for unlimited lives starts counting down right after you get the reward, and it can't be paused or stopped by closing the app. We suggest you play the game as long as possible while the bonus is active, so it doesn't go to waste.