Japanese Adventures with Hello Kitty

In planning our trip to Japan, I randomly found an app on the iTunes store for my iPhone called "Visit Japan with Hello Kitty" - it was, apparently, only available from September 3, 2012 until March 31, 2013.  The official site was here and there's more Official info about it here - those are probably pointless links if the app is no longer available, but if you are able to find it, it's fun and I used it earlier today so I know it still functions.  I played with it a little before we left, but I couldn't figure out what it was supposed to do, besides provide a bit of info about touristy places in a cute format, and almost deleted it.  Luckily, I didn't - and happened to open it and click on the camera button - Hello Kitty magically appeared on my camera screen!