Pinball FX2

Before you launch the ball you will see on the Dot Matrix a target moving across the screen. You want to launch the ball as soon as you see the target over the robot. This will nab you a random bonus that will appear on the Dot Matrix. It will most likely take a lot of tries until you get the one that you want, but keep restarting the table until you get the Cannon Opened skill. You’ll know you got the correct one when you see a car driving away from a robot on the dot matrix. When you get the bonus, shoot the ball into the subway tunnel on the lower left of the table. The cannon will be loaded and fired at the robot, unlocking the achievement.

To those who prefer a video :)

- Launch the ball when the crosshair is in front of the giant robot in the Dot Matrix Screen found in the top left corner

- Keep Restarting the game until you get the Speeding Car followed by the words "Cannon Opened!" in the Dot Matrix screen
- After this you need to use the Right Flipper to get the ball in to the Cannon,do this by hitting the lane (marked by a Red Circle) that's located just below the fixed ball in the bottom left of the screen.

- NOTE:
The fixed ball is located in the lane that leads up to the blue UFO.
The Red Circle is also located in the left Drain Lane,so to specify it's the top Red Circle :)

- GOOD LUCK