Pinball FX2

Shoot either orbit enough times to light up "TRAINING," then shoot the ball up the center ramp.

From there, shoot all the flashing targets. I made this video.

Pick your poison from the start and either aim at the left or the right orbit on the table. The goal here is to spell out the word TRAINING to open the way to the training area. After you spell it out shoot up the main ramp in the middle and you'll be taken to a mini pinball table. To start, knock down all 8 green targets. As you clear each side a sink hole will open, distinguished by the yellow arrows, which you must also shoot the ball in. When that is finished shoot the ball up the middle yellow arrow and you will end up on another mini pinball table. There are several lanes here and your goal is shoot into the ones that are lit green. There will be quite a few to go through before the Citadel ramp rises up. Shoot that ramp to finish the mode and get the achievement.