TOMMY COMBOS EXPLAINED!
I don't see this fully documented anywhere else. So here we go.
UNIQUE COMBOS:
3 Way Combo - Right Ramp, Left Ramp, Right Scoop - Scores 10 Million
3 Way Combo - Left Ramp, Right Orbit, Mirror - Scores 10 Million and advances two TOMMY letters
4 Way Combo - Right Orbit, Right Ramp, Left Ramp, Right Scoop - Scores 20 Million
4 Way Combo - Right Orbit, Right Ramp, Genius Lane, Mirror - Scores 20 Million and advances three TOMMY letters
BUILDING COMBOS:
3 Way Combo - Left Ramp, Right Orbit, Right Ramp - Scores 10 Million
Can build to a 4 Way Combo - Genius Lane - Scores additional 20 Million
Can build to a 5 Way Combo - Mirror - Scores additional 10 Million and immediately lites Multiball Ready.
Also, there are these miscellaneous Combo/Bonuses:
One Way Combo - When Mirror is down at start of ball and player launches ball into play with a full plunge and immediately shoots the Tommy hole from the upper left flipper - Scores 5 Million
Sigma Bonus - Bounced off the right side of the Silver Ball target and into the Tommy hole when Mirror is down and Multiball is ready - Scores 10 Million
Extra Ball Combo - From Lite Extra Ball at Right Scoop to Genius Lane where you immediately Collect Extra Ball - Scores 5 Million
4 Engine Start Bonus - Four consecutive shots to the Left Ramp (only available during higher Captain Walker levels where it takes 4 or more Left Ramp shots to start the Captain Walker Spinner/Ramp Bomb Dropping mode) - Scores 10 Million
Lyman Bonus - If you drain on your last ball and are within 2 Million of the replay score, you will be awarded an extra 2 Million and you will get your replay - Scores 2 Million
Ramp Skill Shot - Shot to the right ramp after full plunge at start of ball - Scores 10 Million
Race To Wizard - Start Pinball Wizard before ever starting a multiball - Scores 20 Million
Parachute Sneak-In Award - Shot to the Parachute hole during regular gameplay when Skill Shot is at maximum - Scores 1 Million