Bonuses are power-ups that can be added to the field when you start match-3 level. 

Tap bonuses in the pop-up that appears when you start level to choose ones you want to use. 

• Rocket adds two rockets to random tiles on the field. Vertical rocket clears one column, horizontal one clears one row.
• Pinwheel adds pinwheel to random tiles on the field. Match it with a piece to destroy all pieces of the same type.
• Bombs adds two bombs to random tiles on the field. 

Once level starts bonuses will be added to random tiles on the field. You can tap on them to activate or hit with power-ups.

There are several ways to get bonuses:

• You get bonuses as reward for completing chapters.
• You may get bonuses as reward for upgrading settlement.
• Receive chest that contains rewards including bonuses for completing levels.
• Bonuses can be purchased using crystals.