Tetris 99 Maximus Cup 54: Yoshi and the Mysterious Book Theme Arrives May 29–June 1, 2026

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Tetris 99 Maximus Cup 54 brings a Yoshi-themed cosmetic to the competitive puzzle battler, arriving May 29 and running through June 1, 2026.

Developed by Arika and published by Nintendo, Tetris 99 launched on February 13, 2019 as a Nintendo Switch exclusive battle-royale take on Tetris and has regularly featured limited-time Maximus Cup events that reward players with permanent themes and other cosmetics.

Nintendo released a trailer for Maximus Cup 54 via the Nintendo of America YouTube Channel showcasing the new Yoshi and the Mysterious Book theme.

The event is scheduled to run from May 29, 2026 until June 1, 2026.

Players who want to permanently keep the Yoshi and the Mysterious Book theme will need to earn 100 event points during the cup window.

In clear terms, Nintendo states that participation in Maximus Cups requires an active Nintendo Switch Online subscription and a copy of Tetris 99 downloaded from the Nintendo eShop.

The game is playable on Nintendo Switch hardware and updates and event access are delivered through the eShop and the game’s online service.

Maximus Cups are recurring timed events in Tetris 99 where competitors can earn event points toward unlockable themes and other rewards.

For Maximus Cup 54, the published requirements are straightforward: join the event during the May 29–June 1 window, accumulate at least 100 event points, and the Yoshi and the Mysterious Book theme will be added to your account permanently.

This release continues Nintendo’s pattern of pairing classic Nintendo characters and motifs with Tetris 99’s rotating cosmetics program.

For players tracking upcoming in-game events, Maximus Cups are among the most reliable opportunities to obtain permanent themes without additional purchase beyond the Nintendo Switch Online subscription.

Fans can view the official trailer on the Nintendo of America YouTube Channel for a closer look at the theme animation and presentation.

With the event live at the end of May, competitive players and collectors on Nintendo Switch should plan play sessions accordingly to secure the 100 event points required before the cup concludes on June 1, 2026.

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