Sounds great.
Visuals also good but I did find the text a bit hard to read, not sure if it's a 'me' problem though; I am on a standard 1080p screen. Maybe it looks better at higher resolutions?
Combat does feel a bit lacking given it is likely to be your main focus. The first couple of run throughs, I didn't realize that the character followed the mouse and that there was no basic attack, only the charged attack.
Given the name of the game, it was not immediately clear to me what I'm collecting after eliminating the enemies, I think it's the little orbs that are the drops? Were there other drops/souls I should have been looking for? This might just be me being a noob but I found the next room difficulty scale to be pretty tough? I couldn't get past the next room and there were enemies that I just seemed to hit but didn't damage at all? And there were a lot of enemies all at once and there was no way to avoid the surround.
I did find a bug on the next room, I could get out of bounds by going down towards the door.