Shoot center spinner to get to yellow base. On factory settings, the base will spot a yellow target. Also, it puts the ball back to the top.
Shoot 3 targets from a color bank to light color lock and get 2 ball MB. Lock the 2 balls to get 3 balls MB and shoot the ramp for jackpot.
In order to avoid drain from center ramp, I would hold up the right flipper and shake upwards to regain control.