Before the start of a match-3 level, the following boosters can be selected: Fireworks, Dynamite, or a Traffic Light. If you don’t have any, you can buy them with Coins. When you use a booster, the corresponding super pieces will appear on the game field at the start of the level. The number of pieces that will appear is 3 for Fireworks and Dynamite, and 1 for Traffic Light.