It's true, it is possible to fail it. I did once. I appear to be the only one in my
circle of friends that's managed to do this. ; ;

On Jul 14, 2013, at 9:26 AM, Stephen Lee wrote:

> Got the SR card from this event, but won't rank high enough for a 2nd
> one :-(  My hands are so tired from playing all these songs...
> 
> The in-game help doesn't mention it, but you can raise the special
> skill level of an R+ character by practicing (not "special practice")
> against another R+ character with the same special skill (no need to be
> the same character, but supposedly need to be the same skill).  The
> unofficial Japanese wiki says it's by chance, so it may not work every
> time but it worked for me when I tried it.
> 
> -- 
> Stephen Lee <usagi@softmagi.com>
> 

--Tim