Yes, doing a three-quarter reverse angle, in perspective, for a walk/run is technically very challenging and some animators would avoid tackling it altogether. But I didn't study figure drawing for years just to take the easy route.
Shoji is a kitsune (hence his poofy tail) with his own show that Sarah, the little girl, watches. Same thing with Z - short for Zoidotron - he has his own show that Sarah also watches. They're both style parodies, much like Itchy and Scratchy in "The Simpsons" or Terence and Philip in "South Park".
