Quoted from gweempose:
I'm talking about simultaneous play where things you do directly affect things on the other person's game. Imagine being able to collect "smart bombs" that could be used to trigger penalties on the other player's playfield. For example, you could be given these choices ...
1 - Raise drop targets that prevent the other player from shooting a certain ramp
2 - Reverse their flippers
3 - have them lose x amount of points
4 - Make their outlane gaps wider
This kind of interactivity would take pinball into a whole new direction and would be a major game changer.
This sounds an awful lot like what's planned for Multimorphic's Cosmic Cart Racing, at least based on the information posted on their web site. Even better, it'll be open source.
What they're doing is pretty incredible, or at least I think so