Requires too much grinding, unless you want the game to be extremely difficult / nearly impossible. They should've just made this an arcade style fighting game, with the same characters and concepts.
I never played this game when it first came out, so maybe I'm biased against it, but this really does not seem like a very good game. Only being able to shoot a gun in third person is awful. It doesn't seem like all that much happens in this game.
If you're going to play this game, do yourself a favor and only play on Normal or lower. Hard and Extreme are too hard. I like the improved camera angle they implemented for Subsistence, much better than Snake Eater's.
I know this isn't a good game. But the laughs and entertainment this game provided me, watching my cousin fail at the rings over and over and over and becoming increasingly more irate, is simply priceless. It's one of my favorite games ever, for that reason alone.
You won't like this game if you prefer boring, easy games. A Puzzle of Flesh is definitely a good game, but it doesn't hold your hand at all. You'll have to just try everything, in the game, to make progress.