A short plunge to the rightmost saucer should send the ball to the upper playfield.
Mind the gap in between the 2 right flippers. Holding the right flippers up makes it easy for the ball to drain into that gap.
Four routes to lower playfield: upper left hole, secret passage, trap door under right ramp, and draining from left half of upper playfield.
Light Special: lower drop target bank twice to light upper drop target bank, upper bank three times to light lower playfield kickout hole.