In Candy Crush Saga, you will gain boosters as you progress through the levels of the game. Each booster will help you in a different way and is available for use in top left hand corner of your screen.

Lollipop Hammer - You'll receive this booster once you complete Level 6. The Lollipop Hammer will smash any area on the board. It's a good idea to use this booster if you're having trouble getting rid of a final Jelly on the Jelly boards.

Extra Moves - You'll receive this booster once you complete Level 7. The Extra Moves Booster will give you extra moves on a board to help you finish it if you're running out.

Jelly Fish - You'll receive this booster once you complete Level 8. Jelly Fish will turn into 3 fish when matched with a color. These fish will then swim onto the board and smash a Jelly.

Color Bomb - You'll receive this booster once you complete Level 12. When you use a Color Bomb and match it with a color, it will then destroy all blocks of the same color.

Coconut Wheel - You'll receive this booster once you complete Level 14. Coconut Wheels are extremely useful during timed levels as they add 15 seconds onto the clock.

Shuffle Candy - You'll receive this booster once you complete Level 30. The Shuffle Candy booster will randomly shuffle the candy pieces on the board.

Stripe & Wrap - You'll receive this booster once you complete Level 34. This will add one stripped candy and one wrapped candy to your board at the start of the next level.

Bomb Cooler - You'll receive this booster once you complete Level 98. When you have active bombs about to blow on the board and you're close to being finished, considering using this booster as it adds an extra 5 seconds to any bomb.

Mystery Candy - You'll receive this booster once you complete Level 130. The Mystery Candy booster will add a candy to the board with a question mark. Match this candy up and you'll get a mystery tool to help with that level.