I really loved this game, so demo was so friggin awesome. =3
There were several people popping up in-game while I was doing my quests, however there was no lag whatsoever and the game as a whole ran really smoothly, I had to figure out how to use the potions though, but after finding that out, it was really easy. The graphics aren't bad, and the 3D is smooth, not as in a pop-up 3D effect, just a smooth effect that makes the colours and the game more vivid, overall it seemed really fun, the demo only contained one dungeon, but from what I've read, there's also towns where you can buy equipment and stuff (hopefully you'll also be able to forge items), well, I really liked this game, it's something really good for on the go gaming.