This was really solid! I loved the atmosphere. Wading through poison muck with this plodding, solemn music. I also loved all the dialogue and how characterful the various passersby were.
The constant poison damage puts a real pressure for you to move forward, but combined with the finite number of healing herbs (per life) I found that it was pretty easy to just get ground down if you had a bad run and died. I particularly ran into this in Stilt Town, where I basically had 2 flowers to navigate most of the swamp...
Still, a very nice execution on a sort of minimal souls-like, hitting all the atmospheric and tonal qualities as well as the gameplay.