The game feels is kind of good, but it really just feels like I'm playing hotline miami with both a sword and a gun.
The doors don't really exists, and are only there because hotline miami had them.
The adherence to the theme is a bit complex : the "one enemy tell the tale" isn't really justified, and the level design doesn't really play in leaving a single enemy alive a hard task. The "one way to kill enemies" isn't that justified either since your sword both acts as a melee attack and as a ranged attack, and with the really short recall time and cramped level design, you just have in front of you a permanent death area if you want to.
I'm not sure the game fits the theme that much, and originality isn't really there, there are a lot of bugs, there's a door in the wall near the three ranged enemies, and finishing that level replays it in loop.
I don't think the game feel can justify all of that.