Marginally better than the Musou kusoge we got on modern consoles. It's interesting how the story is canon to the manga because it really fits with the overall themes, Susumu Hirasawa composing for the game also made the atmosphere a lot better than it had any right to be.

It's weird how they made a devil trigger mechanic that makes the sword go through walls, which is the game's biggest impairment, it's like you're playing dark souls stuck with the heaviest load and constantly fighting on hallways. In a way it's realistic, fighting as a giant, heavy armoured guy with a large hunk of metal as a weapon would stop any combos as soon as he did a full swing against a wall, but realistic doesn't mean fun, and the fact that they build a mechanic that lets your sword be empowered and go through walls makes me think that they realised that this would be cumbersome, but didn't feel like redesigning the game around it. Would be good for you to press a button to release it since often times it activates against the last enemy and you're burning bar while just walking around.

At least it's 3 hours long so whatever inconveniences in the game won't bother you for long but whoever designed that level with the mandragora running sequences should get a carrot shoved so far up their ass that whoever takes it out and manages to listen to the painful screams of the game dev should consider him a real life mandragoran.