When you win a level, you can earn up to three stars based on how many moves you have left. If you complete the level with at least 30% of your moves remaining, you’ll get 3 stars. If you have 15% of your moves left, you’ll earn 2 stars. Simply finishing the level will reward you with 1 star. The stars you collect fill the Star Chest, which, once full, grants you rewards like coins and power-ups!