Mario Worker: Letter Worlds Series/World U

World U is the twenty-first world found in User:Mariovariable3410's Mario Worker: Letter Worlds Series. It's made up of four levels. First level is a snow level at night, second is an climbing at the mountain, third is a snow level and fourth is a snow castle. This world is quite difficult.

World U
World U map.png
Developer: User:Mariovariable3410
Theme(s): Snow
First appearance: Mario Worker: Letter Worlds Series

Level synopsis

Preview Level Theme Level length (in pixels) Time
World U-1 Snow
??? 500
  World U-2 Snow
??? 700
  World U-3 Snow
??? 650
  World U-4 Snow
??? 400


(please add in)

Retro Worlds

  • World J-4
  • Mario Forever NSMB 2-3
  • Bullet Bill Boardwalk

Castle cutscene

More infos about this world's cutscene can be found here.

Names in other languages

Language Name Meaning
French Monde U World U
Italian Mondo U World U
German Welt U World U
Spanish Mundo U World U
Portuguese Mondo U World U
Polish Świat U World U

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