Challenge

Challenge mode is an event mode which was added in Sizzle Season 2023. Officially a replacement for League Battle, Challenges are limited-time competitions of standard modes with unique in-match conditions. They can be played solo or with a team, and feature a two-hour ranked play window similar to League Battle, but unlike League Battle's constant rotations, the windows only occur at a few specific times during a season. Winning five games in a Challenge awards the player with a Shell-Out Token.

Description
Challenges are limited-time competitions of standard modes with unique in-match conditions. They can be played solo or with a team, and feature a two-hour ranked play window similar to League Battle, but unlike League Battle's constant rotations, the windows only occur at a few specific times during a season. The monthly event battles that appeared in League Battle mode were confirmed to return as Challenges. Winning 5 games in a Challenge awards the player with a Shell-Out Token. Just like Anarchy Battles, Challenges unlock when a player reaches Level 10.

List of Challenges
As of Version, there are 14 known challenge modes. The frequency at which challenges occur is random, aside from the Monthly Challenge occurring once per month, and the New Season Challenge occurring at the start of each season.

Rankings
All three timeframes per Challenge feature a list of the Top 100 Teams, Duos and Solo players respectively.

List of rankings:
 * Challenge/Top 100 (Sizzle Season 2023)
 * Challenge/Top 100 (Drizzle Season 2023)

Challenge Rush


A "Challenge Rush" is a rerun of past Challenges with largely the same stages and modes scheduled for three consecutive days. These reruns are solely announced as such on Japanese social media and while they are meant to be a way for players who missed these past Challenges to still experience them, anyone can participate in them.
 * The "Summer Holidays Challenge Rush" was a rerun of Too Many Trizookas!, The Sheldon Sampler Challenge, and Foggy Notion from 2023-08-01 through 2023-08-03.
 * The "Winter Holidays Challenge Rush" will be a rerun of Too Many Trizookas!, Swim It to Win It, and Sheldon's Dress-Up Showdown from 2023-12-27 through 2023-12-29.

Quotes
"Ballistics aside, we have an update about the League Battle feature from Splatoon 2. A similar feature is coming in Sizzle Season with a new name - Challenges! These are an exciting new way to battle with special rules for a limited time, and you can join solo or with friends."

- @SplatoonNA on Twitter

"A new mode - Challenge - is coming to #Splatoon3 in Sizzle Season 2023! Look forward to monthly challenges and events with special rules. Test your Turf War talent on a brand new stage in the first event, taking place 03/06!"

- @NintendoEurope on Twitter

Badges
Badges are available for reaching each tier of high score in any Challenge.