Really liked what I've seen so far. Unfortunately I seem to have hit a bug!
There's a save point in a graveyard with big yellow crosses. When activated, it faded the screen to black and I saved. However after this the screen remained black. (I could still open the menu, just couldn't see anything.) I'd go back there to try and reproduce the problem, but I was pretty lost!
I did feel the areas could be a bit too big and sparse. But I really dig the art style and the music. Enough to keep me wandering. Oh, and I loved the opening. The scrolling buildings, the music, even the title text - all really cool.