Timing the the rollover in the shooter lane doubles the value of the lit shot for the ball (Joker, Scarecrow, or Batmobile).
Hold left flipper for super skill shot. Hit Joker, Batmobile or Scarecrow for 3X scoring (instead of standard 2x). Joker is most valuable.
Start Scarecrow crane sequence first, but do not complete. Start Joker MB. Now, complete Scarecrow, to stack Scarecrow MB with Joker MB!
Start Scarecrow before Bat Signal Challenge to help you complete the more difficult Scarecrow levels. Start BSC MB, then stack w/Scarecrow.