Is my game too hard?

I received several comments saying that my game is to difficult. Should I tweak the difficulty ? and can I still make small modification like adding some souls that I removed in a hurry because I was afraid the game to be too easy. Please give me your thoughts on this.

https://ldjam.com/events/ludum-dare/39/daemon Capture d’écran 2017-07-31 à 23.38.24.png