its sort of working I think? I installed the demo (the PKG) and it installed the demo. Not sure what it does as I just copied over the full games files over the top of the demo minus the eboot and it boots up but in a demo. it says its 35% through the game but acting like a demo.
You can only start a new game, no save/load and not sure how far you can go but I played for about 20 mins and it played just like the full game. It's not like the first level which is how it went first time I tried this when it first came out.
Someone else give it a longer go. See how long you can play for then get back to us. I got into the market then I had to stop.