Players earn boosters as they progress through the levels. Here is a description of the boosters and the level at which they unlock, as they appear from left to right below the playfield: 

 Quake (available at Level13): Quake shakes the screen and 35% damage to every block on the screen

 Bonus Balls (available at Level 17): Bonus Balls - adds 50 balls per turn

Laser (available at Level 22): The Laser power-up adds 4 lasers to the screen. When ball goes through it, it does 1 per ball damage along the laser path 

Line Clear (available at Level 8): Line Clear removes the bottommost line of bricks

Iron Blocks (available at Level 25): The Iron Block power-up adds 5 unbreakable blocks to the base of the screen. It will add blocks to whatever side of the board has more space. They last one turn. Balls will bounce off of it, and continue the break bricks