Butterfree

Butterfree, the first fully-evolved non-starter in the pokedex, is pretty much what we would come to expect from the bug type, a cartoonish, very slightly anthropomorphic creature with minimally insect-like anatomy and usually just four appendages. This is fair enough, since these aren't actuallyinsects, but insectoid pokemon. Ash even says just that at one point. "They're not real bugs, they're bug pokemon." How he even knows about "real bugs" is anyone's guess, since non-pokemon wildlife flat-out doesn't exist in his world.

One thing I will say about Butterfree's design is that I wish way more bug types had those actually insect-like eyes. It's nice that a butterfly wound up having one of the most insectoid faces of any bug type in the first generation, and I love that a butterfly has tiny little fangs, too. It's actually a pretty menacing looking butterfly, when you get down to it, though it's entirely possible we're really looking at a design for a moth. More on that later.