Path of the JediG 10

First thing to do on this is to hit the left orbit(left ramp with orange spinner on it) and it has a flashing "Force" wording in front of it. You will need to hit this 5 or 6 times, your progress can be seen in the dot matrix display. Once you fill the meter up the ramp in the middle will lift and you can start Force Multi ball. Shoot your balls up this ramp until Ezra is holding 4 and you should get the achievement.

This table will allow multiple modes running at the same time, so I can see how BigMaki got this with his solution. The first time I unlocked Force Multi ball, I activated the storm trooper mode which puts up a bunch of storm troopers in the path you need to hit the ramp. This is not part of the Force Multi Ball mode and probably best to try again.

The hardest part is hitting the right ramp as the next ramp over activates Mission mode which will delay you from pursuing the achievement.