What kind of boosters are there in the game?

Boosters are power-ups that make the match-3 levels completion easier. To use the booster tap on it in the left part of the screen during the match-3 level or choose one in the level start window.
You can purchase boosters during the match-3 level for coins (if you have none) or special packs with boosters in the game's shop. To access in-game shop tap the plus sign near the coin icon at the top part of the screen.

Boosters available during match-3 level:
1) Hammer:
- destroys any chosen piece on the level;
2) Glove:
- swaps any two pieces one the level.

Boosters available in the level start window:
1) Kite:
- all Kite bonuses will destroy two pieces instead of one on this level;
2) Bomb and Rocket:
- you start this match-3 level with Rocket and Bomb bonuses on the field;
3) Rainbow Ball:
- you start this match-3 level with the Rainbow Ball bonus on the field.