Extra Ball is lit after a certain number of prizes are collected - this EB can't be removed competitively.
Keep toward the top and complete the standups for bonus x.
Complete all the targets of a set to light a prize! Collect the prize by hitting the flashing pop bumper. Prizes award +1 Bonus X.
Going through the top lane spots a target and advances the value. This can be plunged or fed from the left loop.