I used to play this game years ago with my brother, and it was such an amazing experience. The game was truly a challenge, in large part due to the fact that you were punished for "farming" levels. I remember my first couple of attempts I would try to farm a lot, and then the enemies would become very powerful (I think some type of poison damage or something that you couldn't heal). Once you got the hang of it, it stayed tough. But it was also really engaging and brought you into the world.