The Double Star is specially designed to boost your progress by doubling the points you earn towards your progress bar, which you need to fill in order to unlock badges and other rewards. For an hour, every star you earn effectively counts as two.

For instance, if you complete a level and earn 3 stars, the Double Star bonus will contribute 6 points to your progress bar, helping you reach new rewards and badges at a faster rate.

Make sure to grab this super bonus from the Daily Bonus to turbocharge your progression!