You can get more coins by:
- Opening your free chest every 4 hours
- Open silver and gold chests that are awarded every 20 and 50 spins.
- Trading in Unlock Keys for coins
- Buying additional coins from the shop.
- Collecting your Daily Reward.
- Completing jigsaw puzzles.
- Watching video ads for a coins reward.
- Tapping on bubbles that sometimes contain coins.