Splatfest

 The June 20, 2015 North American Splatfest event has been canceled.

Due to matchmaking issues during the Japanese Splatfest event, Nintendo has postponed the North American event until further notice while they find a solution to the problem. More information will be provided at a later time. Source

Splatfest ("Fes" or Festival in Japan ) is a special event that takes place in Splatoon.

Description
Splatfest is a recurring event hosted by the Squid Sisters, Callie and Marie. During this event, Inklings are able to choose a side between two teams, and participate in battles against the other team. Inklings are limited to two colors during the Splatfest, reflecting which side they're on. Inkopolis Plaza and all the stages are decorated to reflect the event, becoming nighttime and being adorned with festive lights.

During the time, only one region will be involved, and other regions will continue to play without them. Super Sea Snails are awarded to members of the winning team upon Splatfest's conclusion.

Preparation
Before a Splatfest begins, Inkopolis Plaza experiences a variety of visual upgrades to prepare for the event. One week before a Splatfest, a voting booth appears next to the Miiverse Mailbox and the event's theme is announced. Inklings also receive a themed Splatfest Tee, a piece of gear that is wearable for a limited amount of time. Two days before a Splatfest, neon signs adorned with up-and-down-pointing arrows appear on walls and buildings. The day before it takes place, the Plaza becomes noticeably more crowded and two large trucks supporting stage scaffolding appear in the area's center.

Reward Tiers
Super Sea Snails are awarded to participants based on the size of their team, matches won, and ground covered, which dictate each player's Splatfest Title.

Splatfest EXP is earned by participating in and winning matches. Winning a match earns you 3 EXP, and your participation bonus is based on how much BP worth of ground you covered in ink during the match. If you cover 200–399 BP worth of ground, you earn 1 bonus participation EXP; if you cover 400+ BP worth of ground, you earn 2 bonus participation EXP. One can earn a maxmum of 5 EXP per match if your team wins and you cover at least 400 BP worth of ground during the match.

Once Splatfest concludes, the results are announced during a broadcast. The results are based on team popularity, the percentage of the vote each team received, and wins, the percentage of matches each team won. Win percentage is worth double the value of popularity. Players are awarded Super Sea Snails based on the Splatfest Title they have earned. Players on the winning team will earn double the Super Sea Snails.

List of Splatfests
The following is a list of all Splatfest events and their durations. On each event in the table, the first choice is always sided by Callie while the second is sided by Marie.

Upcoming

 * Notes:

Stages
As well as existing stages, the first North American Splatfest may feature currently locked stages. :
 * Camp Triggerfish

Miiverse
During Splatfest you will be able to post messages of support for your side to a special channel on Miiverse that will be displayed throughout Splatfest. This is done through a special option that shows up during Splatfest.

Quotes
"Sometimes the citizens of Inkopolis just wanna party, you know? To satisfy this urge, they throw an event called a Splatfest. To take part in a Splatfest, head to the Pledge Box and pick a team. This is the spot. Don't forget!"

- Info Box

"Callie: Before we reveal today's stages, some special news! Marie: What is it? What is it?! Callie: We've received word from...on high. Marie: You don't mean...?! Callie: That's right! There's going to be a Splatfest soon! Marie: OHH! What's the theme? What's the theme?! Callie: Just a moment! The theme is descending as we speak! Marie: Let's see it! Let's see it! Callie: ...Aaaand it's here! We've got the Splatfest theme! Marie: Let's hear it! Let's hear it! Callie: All right then, I'll announce the theme! Marie: *gulp* ... Callie: The theme for the upcoming Splatfest is... Marie: Wait for iiiiiit..."

- Squid Sisters

Trivia

 * Inklings that attend Splatfest are given a T-shirt with plastic wristband.
 * Some signs are hung up a few days prior to a region's Splatfest.
 * The first North American Splatfest, themed Cats versus Dogs, was delayed for an unannounced amount of time after matchmaking issues were discovered in Japan's Splatfest the previous week.