Below is a description of each power.

1 - Precision Aim let's you aim more precisely
 
2 - Quake takes off 36% of all bricks
 
3 - Extra Balls increase the number of balls in the game
 
4 - Line Clear removes the bottom line of the puzzle
 
5 - Lasers place 4 random lasers on the board
 
6 - Extra Bricks adds 5 bricks to the bottom row to deflect balls back into the puzzle