There's a demo of King of Fighters XIII on Xbox Live right now for download. I have no idea where our review went, but it's a good game and you should check it out if you haven't got it already. Two stages and two teams are open to play in this demo, letting you check it out and see just how pretty it is.
There's a PlayStation Network version of the same demo coming tomorrow, PS3 people.
In related news, you may have heard that there has been some issues with online play. Atlus says that they're currently working on a patch to improve online functionality. There's no date for this patch yet, but stay tuned. They used the word "soon," and they're pretty trustworthy dudes.