Knightin'+ is the Steam version. Is there any difference between that version and the web/itch.io version?

I was thinking about the possibility of a 100% run, where you would be required to pick up every orb possible (points, healing and power-ups), including the ones in secret rooms.

So, the rules say that I have to solve the puzzle for the run to be valid, but what should I do when I enter the level and the door is already open (and the puzzle can't be done)? Or better: how can I avoid this happening? Because so far it seems pretty random