Hearts are needed to start playing a level. You can hold a maximum of 5 hearts at a time, with each life regenerating every 30 minutes.

You'll lose a heart if you don't successfully complete a level. However, there are several ways to get more:

• Ask your club members to send them to you.
• Earn Unlimited Lives from event rewards.
• Use coins to buy them.

As you improve your prestige level, you can also unlock perks like increasing your maximum heart capacity to seven and reducing the regeneration time by five minutes.