The 4 green TOWN targets light lock. Lock via right hole/spinner. Shoot the 2nd ball into the top hole for 3 ball MB, otherwise 2 ball MB.
Most targets and banks are lit for points to flail at during MB. The right loop stays lit for 1M which is the biggest point value.
Gunfight (upper saucer) plays a backbox game where you need to out-draw a bad guy for Mystery (can be huge!). It gets harder over time.