There are no instructions, there is a strange delay on the sword useage, the rooms feel cramped, there is little space to avoid foes. The game feels like it's being played on an ice rink, as rats can slide you around the screen.
Everything moves too quickly, the game lacks the slower methodical play which is found in Zelda (which seems like an obvious inspiration). This incredible speed, with the chunky characters gives me the impression that I'm stuck in a small space and it is terribly unpleasant.
I have never managed to kill more than a single ghost, I don't know what the plague meter is, or how to get it down. Killing enemies is incredibly difficult with cramped conditions and an unresponsive sword. The speed of the movement makes fleeing impractical, as you can get stuck on door frames.
The only way that this game is actually playable, is if you enter a room, run to a dead end, have all the ghosts line up, then block only stopping to strike occasionally. Then you wait, hoping that the health bar will increase, because I have no way of telling if it will or not.
It is in my opinion, almost unplayable, in its current state.