Quoted from dr_nybble:The idea of a "campaign mode" is intriguing, where you would achieve goals over many plays, accumulate trophies, etc.
Imagine a D&D style game where you gained experience points for your character over multiple plays and unlocked new scenarios. And kept your magic items!
I like this better than just saving your progress for an otherwise normal pin. I think of getting deep in a pinball game as a test of endurance as much as anything. Then you can say you scored this high score and it was over the course of four days.
A "campaign" game could go on location too if connected online. No need for players to use only the same machine and same location. Enter a code that can be texted to you and continue it at any location or a home version if it's on the grid.