Nice work, must be great to actually get something published and see it out there

The screen shots look great. Do you know how the 3d human skater models were animated?
We're not sure, exactly. The company we worked with had someone else do the animations, but we had to touch them up. As far as my co-workers could understand, it either had to be mo-cap or people who had no idea what they were doing. Either way, every single frame was a keyframe and therefore the animations are pretty wasteful and very difficult to modify. But in the end they look pretty good so it's okay, it just makes it very difficult to improve in the future. It's sort of the equivalent of running through your code in an obfuscator and then throwing away the original source.
Come to think of it, I know that the other artists worked in Cheetah 3D, which might export everything in keyframes, who knows. Our artists use Maya.