Diamond City is a dark, wet, ketchup drenched shoebox in the bottom left corner of alberto's basement. Alberto's hopes and dreams live in diamond city, but his depresion makes sure they never escape. This place is not to be confused with the other Diamond city seen in the WarioWare games which easily superior to this one.
Background[]
Formed by a group of Humans (just alberto) who felt that they had no real place to call home, foundered a settlement near a diamond mine in a forest near the edge of the Mushroom Kingdom. Over the years they become more wealthy and started to build a proper city and called it Diamond City after the diamond mine.
Government[]
Even though it is a part of the Mushroom Kingdom, it is a self governing city within the Kingdom with it own Lord Minister who is seen as the mayor of the city and High Council. The Lord Minister is voted in every 2 years.