Hey thanks for responding! I eventually figured out how the books work, and it makes a lot more sense now.
The gun seemed to missfire when I pressed both the mouse and move at the same time, I don't remember exactly but I think it happened more consistently when turning around. I tried it with the ghost gun that I now have, and it doesn't have the same issue (Also, I think it was when walking).
As a final feedback report, I found a glitch where when I ghost grapple something it went all crazy and made the grapple stuck on. I don't remember where exactly this happened, but it was pretty weird.
I've made it to what I THINK is the final boss (Wieduch), and the repetitive projectile attack is giving me troubles. I've only been able to succesfully parry every projectile once, so a slightly larger parry window for that would be appreciated.
Edit: Forgot to mention that if you stand below Wieduch on the ground stage, and then parry the dead man's volley attack, they can't deflect back. It's nice for difficulty purposes, but I'm assuming unintended.
Doors that were locked from the other side still have the "this door is locked from the other side" message if you press W at the right time while falling by a door.
There were several typos/grammatical errors I found throughout the games dialogue, I'd recommend going through it either with a writing tool or by hand.
I think that's everything, looking forward to Iridescent's full release!