For tournament play choose the Halfling Rogue character and start in the town of Arabel complete the Purple #1 mode then complete Arabele Dungeon… next to Kobold town and play the Purple #2 mode..
Hit the dragon a few times to light the right orbit for dragon multiball.
During Dragon Multiball, JP values decrease for every ball that drains. Consider using a Shield pre-emptively to keep balls in-play.
After getting one ball locked for Gelatinous Cube Multiball lock a second ball at the left eject, shortcut, or right orbit.
After getting two balls locked for Gelatinous Cube lock a third ball at the left orbit to start a 4-ball multiball.
Right ramp and left orbit can often be hit when 'shield staging' by letting the ball rest on the shield and flipping.