I LOVE Scott pilgrim. Well, more like Knives. And Paul Robertson is amazing for the work he did.
Pretty good pixels and anim, except she looks like she's got 3 legs at one point. The reason might be the transition between frames 3/4 (and 7/8), when her left foot looks like 'taking over' from her right. Also both legs probably need a strong difference in shading.
Great sprite and running animation but I think the saturation in the colours is a bit too high.
Very smooth animation.