If you are out of Hint Coins, you can find more solutions by logging into Facebook through the app.
Levels
Completing levels quickly, in minimal turns, and using multiple droplets will earn you Achievements that pay you in Hint Coins to help solve trickier puzzles. And give you a few gameplay tips in the process.
Spikes
Troublesome spikes can be shunted out of the way if you push them from the side.
