Compete in Daily Contests to win gold, gems and exclusive items! Tap on the trophy button at the bottom of the World Screen to open the Contests tab. From there you can see the 3 contests available per day, the time remaining to take part, the description of your mission, and the icon indicating which level or mini-level you need to go to. You can also tap on the "View prizes & Leaderboards" button to see the public leaderboards and available prizes per tier. The better you score, the higher the rewards!