Love this game, super great work! How do you make your models and animations? I'm working on a game of my own, and I want to have the player character transform a lot like what you do here.
I will say, I noticed an odd glitch with the room just before the boss--it seems that going out and back in respawns the page in that room, which increases the collection counter by one each time you do it. Similarly, the trigger for the final dialogue can be triggered multiple times; in fact, by accidentally attacking at a specific moment, I managed to trigger it twice without leaving the room. Didn't check if it worked again, but it was strange.
Also, I think some of the trigger areas for camera changes could stand to be expanded a bit. On the second floor, between the science lab and the room with the circle of desks, I managed to run past the trigger and wound up navigating the whole room blind because I didn't want to get back in range of the other ghosts. (I'm also not entirely sure the ghosts for that room were properly loaded, as I somehow escaped unscathed.)
Not to say this game was overly glitchy. For a 3D game as complex as this with a team as small as...uh...you, I'm impressed with the quality of the work! Definitely checking out your other games in the future.