Primal Crusader V
Watch some MANime
I would say that out of all places that you can run into a monster house, the worst place is Zero Isle Center because if you run into one there, you will DIE unless you have pokemon with moves that affect a whole room.
I agree, Uxinator. Not only are the monster houses in Temporal Tower are frustrating, Zero Isle would be like a hit-kill-get hit-get killed type of thing (not as if the term exists)