Rikuto
P-P-P-P-P-P-POWER!
How did you come to that conclusion? There were no danger zones in either of those stages... >_>
It kind of makes sense if you aren't talking about moving dangerzones.
Kyoto has slopes, full partitions, half partitions, full walls, half walls, solid ground, water, two stage tiers, and invisible walls.
Halo stage is pretty much the same deal but instead of water and half partitions you have the ceiling.
Personally I'd say that seaside market has the most by far, its just really spread out.
Experimental playground is a broken clusterfuck. It has less to do with "too much" environmental interaction and more to do with "bad" environmental interaction condensed into a small area. Juggles randomly getting cut short because of glitchy tree placement, dinosaurs doing whatever the fuck they please.... no sir.