At the beginning of every level you can choose boosters to help complete a level.
The boosters that can be selected are:
Bombs - a bomb is placed randomly at the start of the level.
+3 Moves - automatically increases the total number of moves available to complete the level by three.
Rockets - a rocket is placed randomly at the start of the level.
Silver coins can be used to purchase these boosters on the menu before starting a level. Tap the pre-level booster you’d like to use so that a green checkmark appears, and the booster will be available to be used at the beginning of a level