Okami has to be the best video game I've played in a very long time. It's the only one I've been through like three or four times. Why?
It's a great story. It's really cool to play as not only a god, but as a wolf god (being a major wolf fan, this is what orginally drew me in). On top of that, the artwork is just superb. The whole thing is just pretty. I love the style. :) And there's so much to do. It's not one you can beat in a weekend.