I just completed the game, and honestly it was amazing! There was a few difficulty spiked areas here and there that I struggled with but that only made it all the more satisfying to complete in the end.
There was one bug I noticed, during Emi's fight two attack patterns overlayed after death, the pattern continued after death and failed to reset. I saved and reloaded. The two stacked patterns remained. I used completion mode to pass it due to the bug but otherwise I played the game 100% legitimately!
10/10, I had so much fun and would love to see more games expanding on this story, I'm hooked!