An easy way to have a good game is play as R2-D2 and choose light death star missions. From there it's easy to start Destroy the Death Star.
A good way to start is to have the multipliers on DS/Endor/Hoth, then just work Endor and Hoth with the left flipper. Easy 100+ million.
Although operators may adjust level or turn them off altogether, extra balls light for the third mode or for getting 80 tie-fighters.
Shoot 5 targets with red lights to begin TIE Fighter Hurry-Up. Hit the TIE Fighter, then bash the action button to advance to Multiball!
Start Hyperspace Hurry-Up by completing the bottom lanes and shooting the lit yellow shots. Collect 3 Hurry-Ups for Multiball. Hit the death star to release the third locked ball for 3 ball multiball.
Always choose Light Tatooine Missions from the skill shot. Otherwise, you will have to make three difficult scoop shots to light them.