GDC09: Actual Batman: Arkham Asylum gameplay footage, no joke

There's only so much we can say about Rocksteady's upcoming Batman: Arkham Asylum. There's only so much screenshots can convey. So it's pretty nice to finally be able to show you what we've been jabbering on about via the magic of video -- and not just any kind, this is (at last) actual gameplay.

Specifically, this freshly released footage is of the "Silent Knight" challenge stage we wrote about in our earlier GDC hands-on. Marvel (er, DC?) as Bats blows up walls, glide kicks and sneaks around all Sam Fisher-like. So, after reading about it and seeing it in action, what do you think?