Gallery sometimes gets the bottom/top positions reversed. Physics are a little unstable there too. Switching some of the female characters out, for instance, eventually caused the breasts physics to warp and deform.
Also, the resolution scale slider keeps resetting to max after closing the options. The actual resolution scale retains it's setting, but returning to the options shows the slider moved back to max even if you set it to anything else. Minor issue, but if you're going back and forth to get other settings tweaked, it can interfere if you forget to repeat the adjustment to that slider.
Finally, it might be an idea to annotate somewhere that going invisible doesn't work unless your weapon is drawn. For a while, I thought it was just broken.