Oh this is go-o-od! Stunning, raw, and full of charm, this was really fun! Special props to the soundtrack for capturing the violent tone quite well.
For what it's worth, the moment the completely undodgeable shotgun attack happened a third time, I immediately suspected there was a parry mechanic I had missed, and then I actually read the manual. Being compelled to master the parry is quite satisfying! I don't think it needs an intro tutorial per se, maybe just an explanation of the parry after dying to the second boss. The parry isn't completely needed for the first boss, so it was very satisfying replaying from the beginning with the new tech!
The construction of the audio is fantastic! I've rarely heard noise channels this crunchy! That said, while the volume option is very appreciated, the default volume is a bit loud, regularly peaking above +0.0 dB unless I turn the master volume down to about 3 bars (I got a peak of +4.0 dB once!).
All-in-all, fantastic entry! Great work! 💚