Yeah I tried both full-screen and without, but I see now in your playthrough that the player isn't supposed to go off-screen to the right so that explains my confusion. I was able to get the key dialogue eventually after waiting a bit and then clicking E, so I was able to progress! I struggled a bit with the font size as well, maybe making it 30% bigger would help with readability, but otherwise, it was a fun game and the boss level really change up the pacing in a good way. Great job!