Board Thread:News and Announcements/@comment-26391060-20140607141328

https://www.google.com/search?q=「ソードアート・オンラインII」Special+Stage&safe=off&client=opera&hs=sOy&source=lnms&tbm=vid&sa=X&ei=VR2TU-DJDoGl8AWVlYGoCg&ved=0CAkQ_AUoAg&biw=1304&bih=700

Also a line of included example of how Kiriko would sound like, on 4:52 of the second video. 