I ended, after second play, with monsters 504/509 and secrets 14/17.
Afair, I have an advanced key left, but can't figure out where to use it.
Also I couldn't enter the big facility building in the first area.
For me the former version in qbj2 had been the finest map of this jam (together with Mazu's. And now its even better.
So much additional fun to explore the walls and roofs.