Is it possible to complete the game without buying anything?
Yes. in fact, it’s not any possible, but very common. All our levels can be completed without purchasing lives, coins or boosters. Our developers only release levels after they personally ensure that levels are beatable without the use of purchases. The game is completely free to play! Boosters and coins can give you the extra edge you need to finish a level, but they are entirely optional and are not needed in order to pass any of our levels.
To complete the hard levels, use special combinations.