Waiting for few minutes? Why not utilize the time on this?
Tap and add a cute green monster. (the green seed is refilled every 10 seconds while in playing)
Wait for 3 minutes then the green one turns into a fairy.
Swipe fairies to make them fly.
1 fairy to fly = 1 score.
After sometime a fairy turns into a pink monster. Tap to dismiss him.
Compete with other players with an online leaderboard.
With more fairies to fly, your name will come to the top of the board. No other tricks!