The thing about Bayonetta fx is that they have EVERYTHING.
The spectacle of scale.
Wonderment of technique.
Diverse color palette.
Animation of silhouette.
Secondary and tertiary fx.
Solid core color.
Consistency of story.
Very few artifacts or edges (in the original, not the wii-u)
Great shaders (in the original)
And really it can be summed up in one word: Delight.
For some reason "boot through the portal" has always stuck in my head as genius.