"Pikachu is most famous for being the "face" of the Pokémon franchise, perhaps being the most widely recognised around the world. " - needs reference
does not have enough footnoting, and could use with a few more references.
needs to have its grammar and spelling checked and corrected.
The cultural impact is in stub form.
WP:LEAD is pretty poor
lots of Weasel words (eg "probably, the most popular") a fair dose of repeating itself,
some needless references to the editor's other favourite Nintendo games.
The cultural impact section is still a bulleted list.
The biology section is written from an in-universe perspective
The "in the anime" section is headed up with a decorative image (can we replace it with a screenshot of Pikachu and Ash?)
Game names aren't always in italics.
In the anime section, paragraphs often start off talking about one thing and end talking about another.
There could be better linking- like in Biology, various electrical concepts aren't linked like they could be.
Some of the wordings bother me: "Pikachu is the only Pokémon in Ash's huge party that has been with him in every series, although a Phanpy he rose from an egg joined him after he travelled around Hoenn."
"Many of the Pokémon animated shorts with all-Pokémon dialogue have featured Pikachu as the main character, often as the main voice of reason. "
some concepts are casually thrown in without explanation or linking (like a "Phanpy").
the order of the sections feel haphazard and mixed together. (Why is anime Pikachu's diet in that section? Why does a description of in-game pikachus separate the anime and manga sections? etc.)