Quoted from Lermods:he upper play field doesn’t look like it does much, kind of a cross between wpt and IJ, likely code issue at this point.
I think the upper playfield is more like TSPP.
You get up there frequently because it ain't easy to make the shots you need when you're there. And once you finally light the cannon, you need to load the cannon. And then you have to actually score the cannon shot.
I think it does a lot. It looks like you need to make a lot of trips up there to get things done.