

I did the near impossible with skill and luck a bullet in one run
My keys to success were the charge shot due to amazing damage against bosses and the ultimate anti ammoconda weapon, the glacier since it made getting the arcane gunpowder easier, and having the pilot since you can carry 2 active items.
I managed to go through the Oubliette and the R&G Dept.
And I the past I was locked in at the last moment, I was out of blanks and 1 and a half hearts left I just focused on dodging even if I was being swarmed by fighters.