Metropolis

For crying out loud, it's stylized! That's why the soundtrack is jazz and blues and stuff. That's why the character animation is "crappy".

Look at a comic book from the twenties/thirties, namely Herge's Tintin books, or Tezuka's manga (fifties actually), which this is based off of, DANG IT! The characters are designed to look like comic book character's from that era. Shinsaku looks like one of the Thompsons. Kenechi looks like a cross between Tintin and Astro Boy.

It's meant to be like a Prohibition era Chicago or something.