Use that brain of yours
"Use that big brain of yours to think your way out."

This article is a stub. You can help the Big Hero 6 Wiki by expanding it.

"Rivalry Weak" is the fourteenth episode of Season 1 of Big Hero 6: The Series. It premiered on August 11, 2018.


Honey Lemon secretly takes art classes at SFIT's rival, SFAI, and soon finds herself caught in the middle of both schools' annual Rivalry Week tradition of pranking each other.


To be added


Main Cast

Supporting Cast



  • Fred is seen wearing his mascot costume from the movie.
  • One of Honey Lemon's paintings (the first one seen when she speaks with the art teacher) is fan art by Tumblr user Punziella.
  • The episode's title has a play of words, since "week" and "weak" are pronounced the same way but it references the "Rivalry Week" tradition. At the end of the episode, Obake also uses double-meaning phrase challenges such as deliberately writing "whole" whilst secretly meaning "hole".


  • At one point, during the double-meaning battle, clone Wasabi's headband is green, then changes back to red in the next scene.



Concept art


ve Episode Guide
Season 1
"Baymax Returns" • "Issue 188" • "Big Roommates 2" • "Fred's Bro-Tillion" • "Food Fight" • "Muirahara Woods" • "Failure Mode" • "Aunt Cass Goes Out" • "The Impatient Patient" • "Mr. Sparkles Loses His Sparkle" • "Killer App" • "Small Hiro One" • "Kentucky Kaiju" • "Rivalry Weak" • "Fan Friction" • "Mini-Max" • "Big Hero 7" • "Big Problem" • "Steamer's Revenge" • "The Bot-Fighter" • "Obake Yashiki" • "Countdown to Catastrophe"
Season 2
"Internabout" • "Seventh Wheel" • "Prey Date" • "Something's Fishy" • "Nega-Globby" • "The Fate of the Roommates" • "Muira-Horror!" • "Something Fluffy" • "Supersonic Sue" • "Lie Detector" • "Write Turn Here" • "City of Monsters" • "Mini-Maximum Trouble" • "El Fuego" • "The Globby Within" • "Hardlight" • "The Present" • "Hiro The Villain" • "Portal Enemy" • "Fred the Fugitive" • "Major Blast" • "Fear Not" • "Legacies"
Season 3
Community content is available under CC-BY-SA unless otherwise noted.