I went in MKTV and recorded an entire run in slow motion, then I sped up the video and blended the frames together to generate a sampled motion blur effect.

My Wii U went into the burn-in reduction stage in the middle of recording this and I didn't notice until the 30 minutes of recording it in slowmo was finished, so I just raised the brightness and contrast a bit to compensate, but the color depth suffered a bit. :c