Attack of the Tetriminos!

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Attack of the Tetriminos! was a Spirit Board event focused on spirits from the Tetris series, which featured Tetriminos as spirits. It ran from 6 a.m on October 25, 2019 to 6 a.m. on October 30, 2019 (UTC). During the event, defeating spirits on the Spirit Board which were part of the event awarded more Gold than usual.

The spirits for this event were exclusive to it at the time. After January 29, 2020, these spirits became available in the Shop and on the Spirit Board like most other spirits.

Description

Five new spirits from TETRIS 99 will descend ominously to the Spirit Board!

Defeat them in battle to earn more gold than usual.

Tetris® and the Tetrimino shapes are trademarks of Tetris Holding, used with permission.

Randomly appearing spirits

Spirit				Battle parameters
No.	Image	Name	Series	Enemy Fighter(s)	Type	Power	Stage	Rules	Conditions	Music
1,351		I-Tetrimino	Tetris Series	•Corrin Team ×3		9,900	75m (Ω form)	•Assist Trophy Enemies (Color TV-Game 15)	•Hostile assist trophies will appear after a little while •The enemy favors down air attacks. •Only certain Pokémon will emerge from Poké Balls (Deoxys)	Tetris: Type A
1,352		T-Tetrimino	Tetris Series	•R.O.B.		4,400	Flat Zone X (Battlefield form)	•Assist Trophy Enemies (Hammer Bro) •Hazard: Screen Flip	•The screen will suddenly flip •Hostile assist trophies will appear •The enemy favors down smash attacks	Chill (Brawl)
1,353		S-Tetrimino & Z-Tetrimino	Tetris Series	•Zero Suit Samus •Samus		4,300	Mushroom Kingdom U (Slide Lift Tower)	•Sudden Final Smash •Item: Screw Attack	•The enemy will suddenly have a Final Smash	Chill (for 3DS / Wii U)
1,354		L-Tetrimino & J-Tetrimino	Tetris Series	•Luigi		3,700	Mario Bros. (Battlefield form)	•Hazard: Left Is Right, Right Is Left •Assist Trophy Enemies (Waluigi)	•Left and right controls will suddenly reverse after a little while •Hostile assist trophies will appear	Fever
1,355		O-Tetrimino	Tetris Series	•Kirby		2,000	Mushroomy Kingdom	•Assist Trophy Enemies (Thwomp) •Item: POW Block	•Hostile assist trophies will appear •The enemy favors down specials in the air	Tetris: Type B

In other languages

Language	Name	Meaning
Japanese	テトリミノ来襲！ TETRIS SMASH	Tetrimino Invasion! TETRIS SMASH
French	L'attaque des Tetriminos	Attack of the Tetriminos
German	Angriff der Tetriminos!	Attack of the Tetriminos
Spanish	¡El ataque de los Tetriminos!	Attack of the Tetriminos
Italian	Attacco dei Tetrimini!	Attack of the Tetriminos
Chinese (Simplified)	Tetrimino来袭！TETRIS SMASH	Tetrimino incoming! TETRIS SMASH
Chinese (Traditional)	方塊來襲！TETRIS SMASH	Attack of the squares! TETRIS SMASH
Korean	테트리미노 습격! TETRIS SMASH	Tetrimio attack! TETRIS SMASH
Dutch	Aanval van de Tetrimino's!	Attack of the Tetriminos!
Russian	Нападение тетримино!	Tetrimino Attack!

Trivia

• The correct plural of tetromino in a mathematical context is "tetrominoes", but the Tetris franchise refers to them as "tetriminos" instead, making the event's title grammatically incorrect but correct in relation to the Tetris universe.
• Attack of the Tetriminos! is the first Spirit Board event released after the version 4.0.0 update to be followed by another Spirit Board event rather than an Event Tourney.
• Attack of the Tetriminos! is the first Spirit Board event based on a non-playable universe to come with more than 4 new spirits.