As quickly as possible, clear out an escape route to the top of the board. Try launching the ball one click right and then keep hitting the ball off the right half of your paddle, gradually destroying the bricks touching the right wall. Or try the same tactic on the left side.
Once you have created a path to the top of the level, send the ball up there until it has stopped moving fast. Once the ball is moving slowly, play conservatively, striking the ball in the center of your paddle, and work on clearing out the bottom five rows of bricks.
Next, turn your attention to the remaining bricks on the top half of the level, which are tucked against the walls and in between unbreakable bricks. These bricks often can’t be reached with conservative shots, and you may need to send some slightly-angled or sharply-angled shots to the top of the board, which will eventually bounce the right way and destroy the remaining bricks. Patience is key on this level.
A Catch is especially useful on this level because of the greater control it allows when launching your ball.
If you get the Gun, try to destroy some of the unbreakable bricks. If you can destroy the unbreakable bricks touching either the left or right wall, this gives you a clear shot at the bricks sandwiched in between. If you can’t reach those bricks, try to destroy any of the four unbreakable bricks in the center of the level. Clearing those out will give you more breathing room and also open up more angles to destroy the bricks tucked against the walls.