Really great time buddy! :D
Doors with the same parameters are just neutral one (except health there is a bug if you are 1 hp). So you are getting like + 5 dmg and -5 dmg - you're staying at 0. I had no time to prepare fully my randomizer - so there are bonuses like that. But i think it's funny so instead of deleting them i just left this bug as a humorous insert.
And about cheese - yes you're probably right. Or there is a big chance of not getting hit if you stay correctly. Glad you found it!
Thank you so much for feedback, and i appreciate that you end whole game with such a result!