DARK BLACK KNIGHT
Tonight - just to try it - I played BKSOR with all other lights and games in the room turned off. Noticed a couple of things:
1. It's an even bigger blast as the music, animations, call outs and light shows feel more intense, really amping up the adrenaline another notch
2. At several points during various light shows, the playfield very briefly goes almost completely (if not completely) dark
3. The Black Knight's beady little red eyes seem to be laser-aimed and focused directly into my eyeballs
#1 is from the effect of being otherwise surrounded by darkness. You're not really seeing things around you out of the corners of your eyes; it's just you and him (well, OK: the game)
#2 definitely adds an extra challenge to game play. During multiball, for example, losing sight of all the balls very briefly every now and then required even more rapid recalculation/adjustment once the lights came back on and you could see where the balls had gotten to from where they were split seconds ago.
#3 Didn't want to mess with it tonight, but does anyone know if the Black Knight's head is adjustable (like able to be tilted up and down) as a unit or if his LED eyes can be? Never really noticed it/paid much attention to it/felt affected by it when playing in a reasonably well-lit environment, but in the dark the Black Knight on my game seems to have his head/gaze raised up; he's looking at me up through the glass rather than straight ahead ("straight ahead" would technically be at an angle a little below parallel to the playfield since in theory he's watching the pinballs so he can block them with his shield and his flail.)