Complete left bank twice or loop thrice to light double bonus. On last ball double bonus is randomly 5x (super valuable)
Spinner lights at certain bonus values (including max 20k), milk it when you can but beware rollovers.
Completing upper bank twice lights inlanes for EB/Special
Left kickout collects bonus, but only worth it once bonus is maxed (otherwise you'll collect at drain anyway)
If Special is set for points, it's worth 100K. Special lights on the left inlane and can be collected multiple times when lit.