A new game launched by SquareEnix. It seems that is free to play/download.
You can customize your character and make it look like a touhou/vocaloid/etc.
http://www.partycastle.net/
Making a Black rock shooter:
http://www.youtube.com/watch?v=Qa8jp1Jw6iE
More info in english:
http://news.mmosite.com/content/2009-10 ... 54,1.shtml
The info in english is from few months ago but it seems that is available to download/register now.
It looks very interesting.