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1. Star Rune by Jyro

   Fandoms: Deltarune (Video Game), Super Mario Bros. (Video Games)  

   • Mature
   • Graphic Depictions Of Violence
   • Other
   • Complete Work

   23 Aug 2026

   Tags

   • Graphic Depictions Of Violence
   • Bowser (Nintendo)
   • Bowser Jr. (Nintendo)
   • Larry Koopa
   • Morton Koopa Jr.
   • Wendy O. Koopa
   • Iggy Koopa
   • Roy Koopa
   • Lemmy Koopa
   • Ludwig von Koopa
   • Koopalings are Bowser's Niece and Nephews
   • Paper Mario characters are here too I guess
   • Bowser's twin brother is here
   • My First Fanfic
   • Crossover
   • Original Dark World(s) (Deltarune)

   Summary

   The Koopalings, Bowser's Niece and Nephews, Fall into a alternate reality when trying to get some markers for a teacher.

   Language:

   English

   Words:

   5,375

   Chapters:

   1/1

   Kudos:

   1

   Hits:

   19