Indigo Zap

Indigo Zap is a female human and one of the Crystal Prep Academy Shadowbolts in My Little Pony Equestria Girls: Friendship Games, living within Human Equestria as one of the foils of the main characters in both Friendship Games and Dance Magic. She has a similar appearance to Lightning Dust, but has a different coloration.

Biography
Indigo Zap appears in My Little Pony Equestria Girls: Friendship Games as a student of Crystal Prep Academy and a member of its sports team, the Shadowbolts. She first appears on the bus to Canterlot High School, exhibiting much more excitement about winning the Friendship Games than her fellow competitors. She startles Twilight Sparkle with her high enthusiasm, and when the bus arrives, she shoves Twilight aside as she disembarks.

During Canterlot High's welcome party for Crystal Prep, Indigo Zap gets in both Sunset Shimmer and Rainbow Dash's faces.

Indigo Zap participates in the Academic Decathlon of the Friendship Games, being paired with Sugarcoat during the woodshop portion. They construct a two-story birdhouse that wins the event, and she gloats over her victory to Sandalwood and Micro Chips. During the spelling bee event, she is eliminated for misspelling the word "chauffeur."

In the Tri-Cross Relay, Indigo Zap is once again paired with Sugarcoat in motocross against Rainbow and Sunset. When the track is attacked by plant monsters from Equestria, Rainbow Dash saves Indigo Zap from being devoured. She recovers and gets back in the race, but Sunset eventually wins.

During the final event, Indigo Zap joins Principal Cinch and the other Shadowbolts in pressuring Twilight into releasing the magic accumulated inside her amulet, and she watches as the magic transforms Twilight into the monstrous Midnight Sparkle. As Midnight opens multiple rifts into Equestria, Indigo Zap and her teammates help save their fellow students and the Wondercolts, saving Rarity with Lemon Zest's assistance.

Role in the series
Though Indigo doesn't appear much in the SAFA series, her Equestrian Pegasus counterpart is revealed to be a distant cousin of Lightning Dust, and shares her and Rainbow Dash's thrill of excitement, proving to be a prodigy to them when she joins in a Marathon Rainbow had been forced into by The Speed King, and though they share a hostile relationship, she helps her defeat Speed King by keeping him from cheating his way to victory, mainly by taking away his Shoes of Hermes.