Well, many people said it on the game reviews, which I think is sad beacause it got many negative reviews and low scores. I asked for a refund but I'd be really happy to buy the game again if the difficulty gets a little tweak.
I think it's been said enough, but just in case, the problem is that normal mode is way too easy (I got some spinning scythes around me that just killed almost every enemy they touched so I just traversed the whole map with almost no need to fight).
And the hard mode is just unfair, a regular enemy can kill you with two hits and bosses are just impossible.

Something in the middle would be so much better, and I hope somebody can mod it or Lunar Ray Games provides a fix for it, since I loved the story the graphics, the music, the character movement, everyithing else!