Quoted from GamerRick:
There is an elevator that raises the ball up and it drops to the right flipper and you can continuously loop it. Just check out the spec sheet. I don’t think it would be easy to get the ball to drop to the lanes from a left lane shot, that’s a right lane shot. It’s moving too fast to drop down in the upper lanes. Also you can set the diverter to stop the ball at the lanes at each launch. Think that’s the default setting.
It can definitely drop into the upper lanes from the left orbit. It depends on what is running in the game. When Berzerker Rage is running, the right gate drops so the loop is disabled. If the Sabretooth battle is running, the right gate drops as well. There could be more, but those are two that come to mind off-hand.