Since the horse girls in the game Uma Musume are bipedal and normal horses don't exist in-universe, the creators decided to modify how the kanji for horse is represented to only have two dots for the two legs. But what about kanji that use the horse radical such as 験? Customizing all the kanji might've been too much trouble to develop, so the developers posted an in-universe article explaining why the radical has 4 dots: an Edo-period poet saw a horse girl running so fast it appeared to him as if she had 4 legs, and this way of writing the radical ended up spreading. I don't play the game but thought this was all quite funny in the way a fictional setting interacts with a pictographic kanji.
by Lertovic