The hex tile system (at least in the demo version) doesn't exist. If this is upgraded in the non-demo, you should probably say something.
The mini-games are fairly easy once you figure out you can do things in them you normally can't do in other similar games.
I realize the demo is probably pretty old, but if you could shorted a 'current' version into a demo and let us see what's actually in there, it would be more of a lure to purchase. As it is, I'm not sure what I would get if I bought it.