Ex is the Guardian of Time and Space, and the former King of Tetris. He is also the true father of Ess.
Puyo Puyo Tetris
His presence is first foreshadowed in Chapter 6. During Ess's visions while training, she encounters Zed. But instead of Zed's normal behavior, she hears a message from a mysterious voice, talking about regretting leaving Ess alone and creating Zed as a substitute. Distressed, Ess challenges Zed to a match, afterwards shrugging it off as an impostor. However, he would appear to O, saying that he's the one that receives Tee's reports and apologizes for causing the worlds to merge with each other, requesting for O to stop him.
His proper appearance is in Chapter 7. Tee explains that he sends the reports to Ex via O, but doesn't remember it. Ex explains it's because of the Edge of Reality exists within Space and Time, meaning he technically didn't exist in any particular world. Arle, Amitie, and Ess then interrupt the conversation to make Ex fix reality before the universe is destroyed from the worlds merging together. However, Ex says it's too late to fix it, and runs off. He then explains that he was once the King of Tetris, before gaining the ability to transverse, and as such became the guardian. He resolved to protect the boundary of reality, using the reports from Tee and O as his only form of communication. However after countless years have past by, he started to develop a sense of depression from the loneliness, eventually causing him to neglect his duties out of doubt and cause the worlds to start merging with each other. Eventually at the Edge of Reality, he personally requests Tee to beat him in a match, believing that being defeated by the current King of Tetris, Tee would motivate him to protect the boundary once again. After beating Ex, Tee requests to take Ex's place as the Guardian due to his loneliness, but Ex personally rejects it. Tee then challenges him again, this time with Ex's full strength. Ex loses, but eventually after persuasion, Amitie comes up with a plan to allow Ex to travel out of the dimension, with assistance from Satan and Ecolo.
As a playable character, he uses the same AI and dropset as Ms. Accord when playing Puyo. Unlike the other characters introduced in Puyo Puyo Tetris, he meets Ms. Accord personally, as revealed in Chapter EX10.
Appearances
Character specific mechanics
Dropset
| Pieces |
Total
|
| 1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
|
|
|
|
Puyo
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
8
|
6
|
1
|
1
|
42
|
Fusion
| Puyo Pieces |
Tetrimino
|
| 1
|
2
|
3
|
4
|
5
|
6
|
1
|
2
|
SP
|
|
|
|
|
|
|
|
|
|
 or  or 
|
Chants
Puyo Puyo Tetris
- Player Chain
| Chain
|
Dialogue
|
| Japanese
|
Romanization
|
Translation
|
Localization
|
| Chain 1
|
うん
|
Un.
|
Yes.
|
Awesome.
|
| Chain 2
|
いいね
|
Ii ne.
|
Good.
|
Better.
|
| Chain 3
|
調子が出てきた
|
Choushi-ga dete kita.
|
I'm getting warmed up.
|
How's this?
|
| Chain 4
|
楽しいよ
|
Tanoshii yo.
|
I'm having fun.
|
Having fun?
|
| Repeater
|
ここから本番だ
|
Koko kara honban da.
|
This is where it begins.
|
Watch this!
|
| Counter
|
因果応報
|
Inga ouhou.
|
Reap what you sow.
|
This is retribution.
|
| Spell 1
|
スピードアップ
|
Supiido Appu
|
Speed Up
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| Spell 2
|
RENラッシュ
|
Ren Rasshu
|
Combo Rush
|
Feel the rush.
|
| Spell 3
|
ハードドロップ
|
Haado Doroppu
|
Hard Drop
|
| Spell 4
|
ハイパーハードドロップ
|
Haipaa Haado Doroppu
|
Hyper Hard Drop
|
| Spell 5
|
ローテーションエックス
|
Rooteeshon Ekkusu
|
Rotation X
|
Revolution
|
- Enemy Attack
| Results
|
Dialogue
|
| Japanese
|
Romanization
|
Translation
|
Localization
|
| Light
|
これは…
|
Kore-wa...
|
This is...
|
Argh!
|
| Heavy
|
なかなか効いたよ…
|
Nakanaka kiita yo.
|
That hit me pretty hard.
|
Good move!
|
- Character Select/Match Result
| Results
|
Dialogue
|
| Japanese
|
Romanization
|
Translation
|
Localization
|
| Character Select
|
お相手いたしましょう
|
O-aite itashimashou.
|
I shall be your opponent.
|
Looks like it's my turn.
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| Win
|
ありがとう、楽しかったよ
|
Arigatou, tanoshikatta yo.
|
Thank you, that was fun.
|
| Lose
|
腕が鈍ったな…
|
Ude-ga nibutta na...
|
(Huh,) I've losing my edge...
|
- Big Bang and Endless Fever
| Results
|
Dialogue
|
| Japanese
|
Romanization
|
Translation
|
Localization
|
| Entered
|
よしよし
|
Yoshi yoshi.
|
Good.
|
That's it!
|
| Succeed
|
いい感じだ
|
Ii kanji da.
|
It's going well.
|
Looking good.
|
| Failed
|
ダメか…
|
Dame ka...
|
Not good...
|
Oh boy...
|
| Big Bang
|
覚悟はいいかな？
|
Kakugo-wa ii kana?
|
Are you prepared?
|
You ready?
|
| Light Attack
|
それっ！
|
Sore!
|
There!
|
| Severe Attack
|
すまないね！
|
Sumanai ne!
|
Sorry!
|
| Win
|
大丈夫かい？
|
Daijoubu kai?
|
Are you all right?
|
Too bad.
|
| Light Attack
|
ひぇ！
|
Hiee!
|
Eek!
|
Ugh!
|
| Severe Attack
|
厳しいなぁ…
|
Kibishii na...
|
Harsh...
|
Looking bleak...
|
| Lose
|
ぼくとしたことが…
|
Boku-to shita koto ga...
|
This isn't like me...
|
I'm getting rusty.
|
- Swap
| Results
|
Dialogue
|
| Japanese
|
Romanization
|
Translation
|
Localization
|
| Swapped
|
さあ、チェンジだ！
|
Saa, chenji da!
|
Here, time to change!
|
New dimension.
|
| Swapped when losing
|
まだこれから！
|
Mada kore kara!
|
You still haven't seen anything yet!
|
Still got this!
|
- Party
| Results
|
Dialogue
|
| Japanese
|
Romanization
|
Translation
|
Localization
|
| Use the power-up items
|
いいものがある
|
Ii mono-ga aru.
|
I've got something nice.
|
This should help.
|
| Use the obstruct items
|
プレゼントだよ
|
Purezento da yo.
|
Present for you.
|
Got you something.
|
| Getting the two items
|
コンボでいくよ
|
Konbo-de iku yo.
|
Have a combo.
|
How's this?!
|
| Piled Up
|
まだ遊べるよ
|
Mada asoberu yo.
|
I can still play.
|
Okay, again.
|
| Win
|
最高に楽しかったよ
|
Saikou-ni tanoshikatta yo.
|
That was absolutely fun.
|
That's what you get.
|
| Be a Runner-Up
|
次は本気を出そうかな
|
Tsugi-wa honki-o dasou kana.
|
Maybe I'll play seriously next time.
|
Guess I need to step it up.
|
| Lose
|
負けるのは悔しいな…
|
Makeru-no-wa kuyashii na.
|
It's mortifying to lost.
|
I hate losing.
|
- Fusion
| Results
|
Dialogue
|
| Japanese
|
Romanization
|
Translation
|
Localization
|
| Chain after Puyo crushed
|
ナイスプレイ！
|
Naisu purei!
|
Nice (play)!
|
Trivia
- Alternate Voice notes:
- In both Japanese and English versions, his tone becomes more rough.
- Ex is referred to as both X and MST in the game's files.
- He's the only character introduced in Puyo Puyo Tetris that is not based on a Tetrimino.
- Ex's voice actor, Kazuki Yao, previously voiced Satan in Puyo Puyo CD and Puyo Puyo CD Tsu.
Gallery
Chain cut-in (Hard Drop, Hyper Hard Drop)
Quest: [★5] Ex
| Characters
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| Supporting Characters
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| Minor and NPC
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| Antagonists
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