Yeah, I remember this one (flOw), played it on PS3, I think. It's a very cool game. There's an eeriness about it, and there's definitely something resembling a narrative. It was always kind of thrilling to "level up" (quite literally, since you're moving between scale planes in the game), and what kinds of creatures you'd encounter at the next level. They would have new mechanics and shapes that you kind of had to figure out by evolving your play style.

Sony can really put out some amazing first (second?) party stuff when they want to, which makes me wonder why they don't do it more often.