What is this simplified/less-detailed art style called?
It's called &quot;super deformed&quot;, or SD.
Some anime spin-offs of franchises in that style have the &quot;Super Deformed&quot; or &quot;SD&quot; in the name, like &quot;Kidou Senshi SD Gundam&quot; or &quot;Kamen Rider SD&quot; others don't, like &quot;The Ten Little Gall Force&quot;.