To unlock a new hero, you can collect cards by winning levels, and you can also check out Frank Offer!

Here is what you need:

Cards: Earn cards by winning levels. You’ll need 3 cards to unlock each hero.

Potions: Collect potions as you play. Once you have enough cards, use the potions to bring your hero to life.

Some heroes are more useful against certain enemies, so don’t hesitate to try them all!!