2 is “max something” IIRC. Things like ramp value, chalkboard value, etc. Never got a display effect to display that, though. Of course, they’re all pretty stealth as-is.
And light extra ball when jackpot is lit!
Never noticed since I never shoot for it, heh. Good catch, though.
Also, for fun and profit, catch the ball after the jackpot and continue to shoot the captive ball for victory laps!