Hm, what was your screen resolution? The player should be centered, with a boss health bar on the bottom of the screen (see screenshots), but it might have been cut off if your monitor is less than 1080p.
I see. Looking at the screenshots most of the game was cropped unfortunately. I didn't even know the boss had a health bar. The aspect ratio of my screen is 3:2 not 16:9 so that might be why.
