Thank you for playing. I think I know the screen you mean! Speaking as one half of the team, I also had to facetank some of the last waves, though mothgram, who made the levels, found ways to clear them without being hit. We tried to strike a balance where players would get enough chances to at least survive, even if they took a hit or two, but probably we would tone it down if we could do it again.
-wrnyfyr