I can't believe I didn't even think about the possibility of combining Voids. Maybe it's just Inori's Void that can be combined though... but either way, that was pretty awesome. I was assuming the combination would be something related to gravity, but I guess a giant laser cannon is just as good.

The scene before the combination... fits strongly into my theory of Inori being connected to Shu's childhood. Or it could indicate the "interference" of the unknown being that is supposed to awaken soon looking for her King. I'm more inclined to lean on my first theory, but the second is a viable possibility.

I was actually disappointed in Inori's use of guns. I was never impressed with the fad of holding your gun sideways and shooting. It was great to see her actually do something though.

I feel like there was more I was going to comment on, but I can't remember it now.