This is almost certainly the last of the “24 Hour Comics Day” strips you will see.  I put this one aside at the time for October, since it’s peripherally related to Halloween, and it’s good to have it lying around as I still scramble to catch up.  Look for at least one more Halloween-rlated strip (with very cool guest art) coming up, and maybe more.

On the subject of the motion lines…I don’t really consider that a rules break.  It’s more like adding onomatopoeia as I have done in previous strips.