Weekenders Adventures of My Little Pony: Equestria Girls - Friendship Games is a sequel film of Weekenders Adventures of My Little Pony: Equestria Girls and Weekenders Adventures of My Little Pony: Equestria Girls - Rainbow Rocks planned to be re-edited by Sonic876. It will appear on Google Drive in the near future.
The students of Canterlot High School prepare for the Friendship Games, a quadrennial sporting event held between their team, the Canterlot Wondercolts, and the Shadowbolts from Crystal Prep Academy. The games are intended to harmonize the two schools, but Canterlot High's students resent Crystal Prep for their poor sportsmanship and unbroken victory record. Principal Celestia and Vice Principal Luna warn Sunset Shimmer and her friends against using Equestrian magic in the competition, tasking Sunset with learning why the others achieve pony-like forms at random times. Meanwhile, Crystal Prep is attended by the human world's version of Twilight Sparkle, a school outcast who has been studying magical activity at Canterlot High as part of a special study program. Crystal Prep's principal, Abacus Cinch, threatens to end her special studies unless she participates in the games, to which Twilight reluctantly agrees.
Twilight meets Sunset and her friends at Canterlot High, guided by a pendant-like device she has built to detect and contain the magic energy around the school. Each of Sunset's friends demonstrate their friendship to Twilight and the Crystal Prep students, assuming their pony forms in the process. However, Twilight's pendant inadvertently drains them of their magic when she draws near. The pendant also seals the portal between the human world and Equestria, preventing Sunset from contacting the pony version of Twilight for advice, as well as giving her pet dog, Spike, the ability to speak. During one of the games' events, a three-event relay, Twilight accidentally drops her pendant and creates a rift to Equestria that brings through carnivorous plants. After dealing with the plants, Sunset reprimands Twilight for interfering with magic, driving her off in tears.
Cinch accuses Canterlot High of cheating because of these magical occurrences, and she and the Shadowbolts pressure Twilight into releasing the magic her pendant has collected to use it against the Wondercolts in the final event. The magic corrupts Twilight, who turns into a sinister demonic creature, similar to demon Sunset Shimmer from Equestria Girls, and begins tearing open more rifts to Equestria, endangering the human world in the process. As the Wondercolts and Shadowbolts work together to save their classmates, Sunset realizes that the source of her friends' magic comes from acting true to themselves. She uses the pendant to combine her friends' magic and become an angelic alicorn figure of herself, closing the rifts and turning Twilight back to normal. Cinch reluctantly agrees to declare the games a tie, realizing no one would believe her accounts of magic against Canterlot High. Twilight decides to stay at Canterlot High, where she is readily accepted by Sunset and the others as new friends.
In a pre-credits scene, the Twilight from Equestria appears through the newly reactivated portal as her human friends are hanging outside. She apologizes for her absence, explaining that she was caught up in an incident involving time travel, only to encounter her human doppelganger, much to her surprise.
During the credits, a montage of photos pop on-screen, showing the key moments of the film, where the schools have most of their time enjoying themselves.
- Littlefoot, Cera, Ducky, Petrie, Spike, Ponyo, Sosuke, Doraemon, Noby, Sue, Sneech, Big G, Jack Skellington, Oogie Boogie, Darla Dimple, Captain Hook, The Crime Empire, (Joker, Two-Face, The Penguin, Negaduck, Megavolt, Quackerjack, Bushroot, and The Liquidator), Grizzle, and Team Rocket (Cassidy and Butch) guest stars in this film.
- Oogie Boogie, Darla Dimple, Captain Hook, The Crime Empire, Grizzle, and Cassidy and Butch of Team Rocket will be working with Principal Abacus Cinch.
- Sci-Twi will meet Tino and his friends again in Weekenders visits Jurassic Park.
- The storyline continues in Weekenders Adventures of My Little Pony: Equestria Girls - Legend of Everfree.
- Jason Marsden as Tino Tonitini
- Grey DeLisle as Lor McQuarrie
- Phil LaMarr as Carver Descartes
- Kath Soucie as Tish Katsufrakis
- Scott McAfee as Littlefoot
- Candace Hutson as Cera
- Heather Hogan as Ducky
- Jeff Bennett as Petrie
- Rob Paulsen as Spike
- Tara Strong as Twilight Sparkle, Sci-Twi and Midnight Sparkle
- Rebecca Shoichet as Sunset Shimmer
- Ashleigh Ball as Rainbow Dash and Applejack
- Andrea Libman as Pinkie Pie and Fluttersh
- Tabitha St. Germain as Rarity and Vice Principal Luna
- Cathy Weseluck as Spike
- Iris Quinn as Principal Abacus Cinch
- Nicole Oliver as Principal Celestia
- Britt McKillip as Dean Cadance
- Vincent Tong as Flash Sentry
- Andrew Francis as Shining Armor
- Sienna Bohn as Sugarcoat
- Sharon Alexander as Sour Sweet
- Kelly Sheridan as Indigo Zap
- Britt Irvin as Sunny Flare
- Shannon Chan-Kent as Lemon Zest