Her moveset is fundamentally the same as hers from All-Star Battle, with a few tweaks being made to both balance the character and fit her into the overall gameplay tweaks that All-Star Battle R brought.
In the English localization of All-Star Battle R, Ermes's Stand, Kiss, is localized as "Smack", carried on from its first official usage in All-Star Battle.
Replacing Ermes's previous voice actor of Chizu Yonemoto is Mutsumi Tamura, who voices Ermes in the Stone Ocean anime. Because of this, and like the majority of the game's roster, voicelines for Ermes were either added or re-recorded.
Ermes has 1050 health, making her the highest health character in the game. She uses the Stand (スタンド, Sutando) Battle Style, fighting foes with Kiss. During a fight, she can use several different attacks that were featured in Stone Ocean.
Ermes briefly summons Kiss to slide forward with her while they both perform two kicks, the second of which knocks the opponent into the air. The attack deals more damage if Kiss's stickers are applied to Ermes's legs.
Switches between User Mode and Stand Mode. Doing so summons or dismisses Kiss, changing the skills Ermes has access to.
Outta my way!
+ ON GROUND
Ermes steps forward and forcefully kicks very high, knocking the opponent off their feet. A command normal that can be chained into Ermes's skills. (Comboable) The attack deals more damage if Kiss's stickers are applied to her legs.
Attack type: High Damage: 25 (normal) 48 (stickers)
Sticker Damage
Automatically activates when a sticker is removed by suffering a hard knockdown
If Ermes is successfully knocked down, any stickers on her limbs fall off and disappear, damaging her in the process and leaving behind white health. Ermes will naturally take more damage if she has stickers on both her arms and legs when she's knocked down. She may recover this lost health over time, provided no more damage is taken afterward.
Resolve Mode (覚悟モード, Kakugo Mōdo)
Activates when under 20% health
This mode is automatically activated once Ermes falls below 20% health. It increases her attack power, as well as the rate at which the Heart Heat Gauge rises. She also gains Super Armor during the start up of all her normal attacks and skills.
Skills [Stand Off] (コマンド技)
Here's where ya stick it!
+ //ON GROUND
Ermes applies Kiss's stickers to herself, duplicating her limbs whenever she attacks. This skill passively doubles the number of hits Ermes and Kiss deal in various skills and abilities; this increases her effective strength, improves her combo potential and safety when her attacks are guarded, and boosts the rate that her attacks build Heart Heat. However, due to the increased hit count, her combo damage scaling is inversely affected. The attack button inputted determines where she places the stickers.
Light (: Ermes places stickers on her arms.
Medium (): Ermes places stickers on her legs.
Heavy (): Ermes places stickers on her arms then her legs.
A sticker icon above the Heat Heat Gauge displays where she has stickers applied, with arm stickers appearing on the left and leg stickers appearing on the right (facing right).
USHAAAA!
+ //ON GROUND
Ermes slides forward and summons Kiss to punch the opponent. The distance Ermes moves forward and the damage dealt increases in order, but the greater the increase, the more vulnerable Ermes becomes. The attack changes slightly based on which attack button is inputted. (Flash Cancel comboable)
Light (: Kiss performs an upward punch once.
Medium (): Kiss performs the initial upward punch but quickly follows it up with two more punches.
Heavy (): Kiss performs the initial upward punch as well as the two follow up. It then punches one more time before performing an uppercut, launching the opponent. However, the opponent will be able to Down Evade when they hit the ground as this does not hard knockdown.
The attack deals more damage if Kiss's stickers are applied to Ermes's arms.
Ermes summons Kiss as the both of them unleash a strong uppercut in unison, knocking the opponent into the air. The and variants have invulnerability. However, as a trade off, they cannot be Flash Canceled. Ermes and Kiss will also slide forward if she uses one of these variants. Both the invulnerability period and the distance Ermes and Kiss move increase in order. This move functions as a reversal and anti-air attack, and if performed on an already airborne opponent, they will be launched much higher. ( variant Flash Cancel comboable) The attack deals more damage if Kiss's stickers are applied to her arms.
Ermes grabs a duplicated broom to fly a distance forwards. If she contacts an opponent or at the end of her travel, the original broom she was flying towards will combine with the duplicate. It will launch the opponent away if connected. The distance Ermes travels and damage dealt increases in order, but the greater the increase, the more vulnerable Ermes becomes. However, the variant is a feint, as Ermes will take out a broom but immediately put it away, which is useful for both offensive and defensive purposes. (Flash Cancel comboable)
Attack type: High Damage: 30 / 35
Peel it off and it merges back into one!
+ //ON GROUND
Ermes briefly summons Kiss to uppercut the opponent with a sticker in its hand. If it connects, the opponent will have their head duplicated, before Ermes quickly snatches the sticker off, damaging them and knocking them down. The distance forward Kiss moves and the number of hits, and therefore damage, increase in order, but so does vulnerability.
Attack type: High Damage: 95 / 110 / 125
Style/Specials/Etc. [Stand On] (スタイル/特殊技/その他)
Stand On/Off (スタンドON/OFF, Sutando ON/OFF)
ON GROUND
Switches between User Mode and Stand Mode. Doing so summons or dismisses Kiss, changing the skills Ermes has access to.
Sticker Damage
Automatically activates when a sticker is removed by suffering a hard knockdown
If Ermes is successfully knocked down, any stickers on her limbs fall off and disappear, damaging her in the process and leaving behind white health. Ermes will naturally take more damage if she has stickers on both her arms and legs when she's knocked down. She may recover this lost health over time, provided no more damage is taken afterward.
Resolve Mode (覚悟モード, Kakugo Mōdo)
Activates when under 20% health
This mode is automatically activated once Ermes falls below 20% health. It increases her attack power, as well as the rate at which the Heart Heat Gauge rises. She also gains Super Armor during the start up of all her normal attacks and skills.
Ermes no longer moves forward when using this attack.
Style/Specials/Etc. [Stand Off] (スタイル/特殊技/その他)
Outta my way!
+ ON GROUND
This command normal can no longer hit downed opponents. Ermes also moves father when she steps forward than she did in All-Star Battle.
Skills [Stand Off] (コマンド技)
Here's where ya stick it!
+ //ON GROUND
This attack's input has been changed. Formally, it was in place of .
USHAAAA!
+ //ON GROUND
While the number of punches thrown still depends on the attack button inputted, there is a greater increase in the number of hits across the versions, with each increase in button strength adding two punches, maxing out at six with the variant (the same number as the All-Star Battle). However, the damage has been redistributed to accommodate this, so the damage of the skill is comparable. The distance forward Ermes and Kiss moves is also significantly less than it was in All-Star Battle for all variants of the skill, though the variant is the most obvious. Additionally, while the startup of the variant is comparable, the actual punches execute much slower now, resulting in the hitbox being more active.
Uryaaaaa!
+ //ON GROUND
The and variants can no longer be Flash Canceled. These two variants also have Ermes and Kiss moving forward more than they did in All-Star Battle. Furthermore, the variant no longer has invulnerability on its startup and Ermes and Kiss no longer move forward.
It's quite useful...
+ //ON GROUND
This attack's input has been changed. Formally, it was in place of . Ermes also no longer passes through opponents with this skill. Instead, it now always behaves like how it did in Stand Mode in All-Star Battle, with the attack dealing damage. However, the feint on her variant has been kept. To go along with that, the voiceline Ermes says while using this skill has now been standardized so that it is less obvious when she is using the feint. She now always uses the voiceline she previously used only for her variant. Ermes also flies forward a significantly less distance than she did in All-Star Battle. The translation of the name of this skill has also changed. Previously, it was Pretty handy, huh? instead of It's quite useful....
Peel it off and it merges back into one!
+ //ON GROUND
This skill deals significantly more damage than it did in All-Star Battle, with the damage now increasing in order instead of staying the same. The translation of the name of this skill has also changed. Previously it was Take it off and it returns! instead of Peel it off and it merges back into one!.
Medal List
Costumes & Tints
Costumes
Normal
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The player's Heart Heat Gauge does not fill while their Stand is active.
Secret Missions
1. Use the "Here's where ya stick it!" skill: 1000 G 2. Land a counterattack: Ermes Publicity Artwork 3. Land a Great Heat Attack: Kiss 3D Model 4. Win with a Heart Heat Attack: Ermes Special Outfit A
Entrance Dialogue
Polnareff: What's a girl like you doing in a prison like this? There must be a reason. I can see the determination in your eyes. Ermes: Butt out. That's none of your business.
Victory Dialogue
Ermes: So it wasn't just me... You smell just like me.
Defeat Dialogue
Polnareff: I'm not going to lecture you. If it'll do you good, then go get it done.
Ermes's theme is Kiss of Love and Revenge (愛と復讐のキッス, Ai to Fukushū no Kissu), and can be unlocked in-game by buying it from the Gallery Shop for 1000 G.
Ermes's Theme
Its name is taken from the title of the arc where Ermes's backstory is revealed and she manages to get her revenge for her sister, Kiss of Love and Revenge.
An ally in Part 6: Stone Ocean. She is the user of the StandKiss. She awakened her Stand after being pierced by the Stand Arrow fragment in Jolyne's pendant. She is cheerful and wears her heart on her sleeve, and becomes a close friend of Jolyne.
User of the Stand Smack. Jolyne's friend and confidant who awakened her Stand after being pierced by the Stand Arrow in Jolyne's pendant. Cheerful and wears her heart on her sleeve.
Ermes Costello's Stand. It can produce special stickers that create a second copy of whatever they are adhered to. When the sticker is removed, the duplicate flies toward and merges with the original, causing great damage to itself.
Ermes Costello's Stand. It can produce special stickers that create a second copy of whatever they are adhered to. When the sticker is removed, the two copies fuse together with great force, doing damage to each other and anything in between.
ON GROUND 
ON GROUND 
ON GROUND 
+ 
ON GROUND 
+ 
+ 
+ 
Taunt Lines
700 G
Buffs
Nerfs
Neutral
Normal Costume
Kiss Publicity Artwork
Ermes Color Tint C
Kiss 3D Model
Ermes Special Outfit A
Kiss of Love and Revenge (愛と復讐のキッス, Ai to Fukushū no Kissu), and can be unlocked in-game by buying it from the Gallery Shop for 
