I mean, alt sonic's is neither, it works (and kind of looks like) mania's dash sprites (with cd peelout turned off), not using seperated graphics put together to make something, but all being one sprite per frame like the normal run animation (and the altsonic peelout sprites also having only 8 angles), unlike the paper peelout (and cd peelout version), which combines an 8-angle sonic upper body sprite with a paper sprite for his peelout shoe shape which can face in as many directions as a model.