To me, it's not so much clash, but more of perspectives slightly off. If a different perspectives for the backgrounds were used then oh yeah, just played Odin Sphere for the first time yesterday.
And it's not a bullet hell, although it seems like it at some points, and I've actually been optimizing the game so I can deliver nearly hundreds of beams, missiles, and enemies before there's a noticeable FPS drop. Well, not that many, but enough to cover the screen.