 During standard puzzles, up to three stars are awarded based on the player's performance (completing the puzzle within a certain time limit and with no strikes earns maximum stars) which unlock additional bonus puzzles in each level.In between certain levels are "One-Chance Challenges", where players make just one mistake and they're out, "Time Challenges", which require players to quickly chip away cubes to extend their time limit, and "Construction Challenges" in which multiple puzzles are completed to form one giant image.Bonus animations can also be unlocked under certain conditions, such as completing each difficulty setting.