Power Stone Wiki
Jack in Power Stone
Vital statistics
Title Mad Clown
Gender Male
Age 15 (Game)[1]

Unknown (Anime)[2]

Height 190 cm (6'3")
Weight 61 kg (134 lbs)
Stage Manches
Main item Manches Chainsaw
Appearances Power Stone
Power Stone 2
Power Stone (Anime)
Voice actor Wataru Takagi
Julie Lemieux (English Dub)[citation needed]

Jack (ジャック Jakku) is a playable character from the Power Stone series. In the anime, his full name is Jack Winslow and is a recurring enemy until Episode 25.


Jack makes no distinction between right and wrong. He only cares about pretty, shiny things, and cutting with his knife. In Manches, his hometown, Jack the Slayer used to stop women and steal their shiny jewelry. But then one day he overheard a tale about the Power Stones, the most dazzling jewels in all the world, and he immediately set off to claim them for his own.

In his ending, "Who is This Guy?" (フー? Fū?, "Huh?"), Jack finds the Power Stone in Avalon Is. and makes his wish. A doppelganger appears to have been caught in his place, claiming the population and making it easier for him to obtain more shiny objects.

In Power Stone 2, Jack's wishes were increasing after he obtained the Power Stone. "I want more shiny things... I want to slice more...!", he says. As if in response to his desire, he hears a mysterious voice echoing in his ears: "A mysterious castle will emerge in the night sky at the next full moon. There, a lot of shiny treasures are waiting..." Without noticing that it's an invitation from the darkness, Jack is happily absorbed into the floating castle during the full moon.



When transformed, Jack becomes a large segmented machine with one robotic red eye and giant blades for hands and feet. The segmented parts of his arms have smaller blades on them. In both games and in promo art, his Power Change form is either blue or green. In the anime, it is a purple-like shade of blue.


Jack's moves are surprisingly agile, mysterious and unpredictable, due to him being able to contort his body. However, he is not as powerful as his appearance suggests. He is better at rapid attacks, disturbing the opponent's rhythm and wearing the enemy down over time.

Special Moves[]

Power Drive
Punch Rolling Slash (ローリングスラッシュ Rōringu Surasshu)
Jack attacks forward with a spinning blade on his arm, hitting the opponent multiple times. Not present in Power Stone 2. In the anime, it was used to deflect Ayame's Flower Shuriken and Rouge's Hellfire Sign during their fight.
Kick Round Slash (ラウンドスラッシュ Raundo Surasshu)
A long-reaching horizontal swipe.
Power Fusion
P+J Killer Dance (キラーダンス Kirā Dansu)
Jack spins his arms at high speed to slice his opponent, hovering upward for a short time.
K+J Misery Rain (ミザリーレイン Mizarī Rein)
Jack unleashes large energy blades that hone in on the opponent. This move has a different animation depending if you are on the ground or in mid-air.


Power Stone[]

Voice Original Translation
Intro A それ、もらう That, I'll take
Intro B ギャハハハ〜 Gyahahaha~
Taunt らん、ら、らん、ら〜ん Ran, ra, ran, raaann
Defeated うぎゃ〜 Ugyaaa
Kiai (small) ひゃっ Hyah
Kiai (medium) しゃっ Shaah
Kiai (big) しゃおぅ! Shaau!
Combo Last ギヒャハハ Gihyahaha
Throw ぎゅるぎゅる〜 Gyurugyuru~
Throw Miss へぇ? Heh?
Object Throw/Kick/Push シュート! Shoot!
Hit (small) ぐっ Guh
Hit (medium) ぎゃっ Gyah
Hit (big) いた〜いっ Ouuuch
Burned きひひ〜い Kihihiii
Vase on head ふんっ、ふっ Funn, fuh
Grab ひひっ Hihih
Avoiding ひゅ〜う Hyuuuu
Defensive きひひっ Kihihih
Item Get ふぁ〜い! Faaai!
Victory (1) もっと遊ぼうよ〜ひひっ Let's play more ~ hihih
Victory (2) 光る石、欲しい... Shiny stone, I want...
Continue コワレチャッタ〜 I got broken~
During Transformation 1 (1P side) いくよ〜 Here goes~
During Transformation 2 (2P side) ショータイム! Showtime!
Special Move P ぎゅるぎゅる〜 Gyurugyuru~
Special Move (RE) P しゃおぅ! Shaou!
Special Move K シュート! Shoot!
Super Special Move PJ きってやる〜! I'll cut~!
Super Special Move KJ ヒュ〜! Hyuuu!


Jack is the last surviving member of the Winslow family, the former royal family of Sun Land. His ultimate goal is to find the Power Stone like the one in his mother's portrait. Unlike the first game, his voice is unfiltered and he fights with smaller knives and needles along with his dual knives.



  • Jack appears to be based on the serial killer Jack the Ripper.
  • Jack's knives resemble smaller versions of the knives used by Mack the Knife, a playable character in Captain Commando.


Power Stone
Games Power Stone - Power Stone 2 - Power Stone Collection
Other media Power Stone (anime) - Power Stone (manga) - Power Stone Original Soundtrack
Power Stone Original sound track ROUND 1 - Power Stone Original sound track ROUND 2
Characters Falcon - Rouge - Wang-Tang - Ryoma - Ayame - Gunrock - Jack - Galuda - Kraken - Valgas
Pete - Julia - Gourmand - Accel - Pride - Mel - Pharaoh Walker - Dr. Erode
Apollus - Jane - Cassie - Octo - Pus
Master - Lord - Ayame's family - King Octopus - Valgas' Team