The Battle for Katana Kingdom is an upcoming major Brawl Stars event, presented as a four-part series.
The event, launching in May, will unveil a new chapter every other week, offering fresh content for players to explore.
Throughout the event, players can collect sushi rolls to earn rewards. Collecting 200 sushi rolls will unlock a free Oni skin for Kenji in Brawl Stars.
Battle For Katana Kingdom In Brawl Stars
The Battle for Katana Kingdom countdown appears on the main screen, with the event kicking off on May 1.

The event spans four weeks, with a new event and game mode unlocking each week, bringing fresh content for players.
Throughout the event, players can earn Sushi Rolls, which function like Star Drops and grant exclusive rewards.

In addition to exclusive skins, hypercharge, gadgets, coins, credits, pins, sprays, and brawlers, players can also obtain Wasabi from the Sushi Rolls.
Wasabi Powers are temporary buffs active in the wasabi modifier game mode that alter a Brawler’s abilities.

Each Wasabi grants unique abilities to Brawlers, and the Wasabi Powers are categorized into four rarities: Hot, Extra Hot, Crazy Hot, and Inferno.
Obtaining The Oni Skin For Kenji In Brawl Stars
Each sushi you collect throughout the event will contribute to your sushi meter, unlocking rewards as you progress.
Players can obtain Sushi Rolls through daily wins, free rewards, special quests, daily contests, club events, or by purchasing them from the shop.

Rewards include gems, exclusive skins, epic rarity brawlers, and up to 1000 credits, earned at various milestones. At the 100 milestone, players will earn the exclusive event skin for Kenji, called Cursed Kenji, for free.
Players must first unlock the brawler to use the skin, even if they obtain it through the sushi meter.

Similarly, players will unlock the Oni skin for Kenji upon reaching the 200 Sushi Roll milestone, which is the only way to obtain this Hypercharge skin. Additionally, the developers have stated that opening 120 Sushi Rolls guarantees players will unlock all exclusive event skins.

There are a total of eight skins including the hypercharge skin for Kenji that can be unlocked, and collecting all of them will reward players with a free spray.