Akira Otoishi (音石 明, Otoishi Akira) was confirmed to return for All-Star Battle R during the game's initial announcement trailer.[1]
His moveset is fundamentally the same as his from All-Star Battle, with a few tweaks being made to both balance the character and fit him into the overall gameplay tweaks that All-Star Battle R brought.
Being Akira's one and only voice actor, debuting in All-Star Battle and later voicing Akira in the Diamond is Unbreakable anime adaptation, Showtaro Morikubo reprises his role in this game as well. As with majority of the game's roster, voicelines for Akira were either added or re-recorded.
Akira has 950 health and uses the Stand (スタンド, Sutando) Battle Style, fighting foes with Red Hot Chili Pepper. During a fight, he can use various moves from his appearance in Diamond is Unbreakable.
Otoishi briefly summons Red Hot Chili Pepper to move forward and deliver a two hitting uppercut. If Otoishi has MAX Electricity, this attack will do more damage and knock the opponent into the air with the second hit.
Otoishi briefly summons Chili Pepper, whose upper half appears from the ground and jabs straight out. If Otoishi has MAX Electricity, this attack will do more damage.
Oroishi briefly summons Chili Pepper, whose upper half appears out of the ground and performs a sweeping chop. If it hits, the opponent will be knocked to the ground in a hard knockdown. If Otoishi has MAX Electricity, this attack will do more damage.
Otoishi performs an aerial kick straight out. If it hits the opponent, they'll be launched away.
Attack type: Middle Damage: 30
Style/Specials/Etc. [Stand Off] (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 Red Hot Chili Pepper, changing the skills Otoishi has access to.
Charge
+
ON GROUNDCHARGEABLE
Otoishi pulls out a small amp, allowing Chili Pepper to siphon off it and replenish the Electricity Gauge. This action can be canceled into from normals and puts Otoishi in a crouch, making him harder to hit with projectiles and other high-hitting attacks.
Right Hand Rockout
+
ON GROUND
A special taunt. Otoishi plays a guitar solo as the whole stage darkens and multi-colored spotlights appear above him out of nowhere. This taunt slowly refills his Heart Heat Gauge, up to a whole stock if it completes without the opponent interrupting, and is the only skill that Otoishi can perform with an empty Electricity Gauge as it does not involve RHCP. If this taunt is playing when the round ends, the round will not fully complete until it finishes and grants the stock of HH.
Electricity Gauge
Passive
Exclusive to Otoishi is a two-meter gauge that directly affects his abilities depending on how much of it is filled, with its power constantly draining and being consumed whenever he uses abilities or has Red Hot Chili Pepper active. This gauge can be manually filled by either using "Charge", Otoishi's HHA, or his GHA.
If it completely depletes while Otoishi is in Stand Mode, he will be forced into a special animation as Chili Pepper is forcibly dismissed, leaving him vulnerable. While empty, Otoishi is unable to use any skills, moves, even his Throw, or summon Red Hot Chili Pepper, leaving him with only his User Mode normal attacks. After the gauge has been fully drained, it will passively refill to about a quarter of a stock while in User Mode. It will then start passively draining again once reaching this point.
If it is filled past the first meter, Otoishi enters "MAX Electricity", increasing the damage and speed of his attacks involving Chili Pepper as well as altering their properties, with the Stand visually becoming brighter as more sparks and electric crackles come off of it.
If in Stand Mode, Chili Pepper can remain in MAX Electricity even after the gauge drops below the second level, provided Otoishi doesn't dismiss the Stand.
Rumble Mode (ゴゴゴモード, Gogogo Mōdo)
Activates when under 30% health
This mode is automatically activated once Otoishi falls below 30% health. It increases his attack power, as well as the rate at which the Heart Heat Gauge rises, while also decreasing the rate at which the Guard Gauge drops.
Skills [Stand Off] (コマンド技)
Spitfire
+ // then + for follow-up
ON GROUND
Otoishi summons a small RC airplane carrying Chili Pepper in it that travels forward as a high-flying projectile. The distance the plane travels, the speed it flies, and the damage dealt increases in order, but the greater the increase, the more vulnerable Otoishi becomes. This projectile cannot be reflected and doubles as an anti-air. (Flash Cancel comboable)
This skill possess its own follow-up. If used, Chili Pepper exits the plane to deliver a drop attack, knocking the opponent down.
When at MAX Electricity, this attack deals more damage and the airplane itself will shock the opponent upon connecting, leaving them bound and then crumpling. The follow-up will also launch the opponent instead of knocking them down. (Comboable)
This skill's recovery is incredibly long, making it extremely punishable when whiffed. When combined with the fact that it cannot hit crouching opponents unless they are Mounted, it is inadvisable to use this attack in neutral.
Otoishi summons Chili Pepper to come out of three distinct spots of electricity on the floor determined by the opponent's position; The opponent is always between the second and third points, regardless of range. The attack will knock them down, but if Otoishi has MAX Electricity, it will instead cause the opponent to crumple to the ground. Also, this skill will not activate counters. The direction and where Chili Pepper attacks from is determined by the attack button inputted. (Flash Cancel Comboable; Comboable when at MAX Electricity)
Light (): Chili Pepper jumps from the first spot to the third.
Medium (): Chili Pepper jumps from the second spot to the third.
Heavy (): Chili Pepper jumps from the third spot to the first, moving towards Otoishi.
Attack type: High Damage: 35 (normal) / 60 (MAX Electricity)
Normals [Stand On] (通常技)
Standing Light Attack
ON GROUND
Chili Pepper jabs outwards. If Otoishi has MAX Electricity, this attack will do more damage, but the start up will be longer.
Attack type: High Damage: 12 (normal) / 15 (MAX Electricity)
Standing Medium Attack
ON GROUND
Otoishi and Chili Pepper move forward while Chili Pepper delivers a two quick hooks. If Otoishi has MAX Electricity, this attack will do more damage, but the startup will be longer.
Chili Pepper moves forward and throws an overhead punch quickly followed-up by an uppercut. If Otoishi has MAX Electricity, this attack will do more damage.
Chili Pepper moves forward and performs a sweeping chop, knocking the opponent to the ground in a hard knockdown if hit. If Otoishi has MAX Electricity, this attack will do more damage.
Switches between User Mode and Stand Mode. Doing so summons or dismisses Red Hot Chili Pepper, changing the skills Otoishi has access to.
Charge
+
ON GROUNDCHARGEABLE
Otoishi pulls out a small amp, allowing Chili Pepper to siphon off it and replenish the Electricity Gauge. This action can be canceled into from normals and puts Otoishi in a crouch, making him harder to hit with projectiles and other high-hitting attacks.
Electricity Gauge
Passive
Exclusive to Otoishi is a two-meter gauge that directly affects his abilities depending on how much of it is filled, with its power constantly draining and being consumed whenever he uses abilities or has Red Hot Chili Pepper active. This gauge can be manually filled by either using "Charge", Otoishi's HHA, or his GHA.
If it completely depletes while Otoishi is in Stand Mode, he will be forced into a special animation as Chili Pepper is forcibly dismissed, leaving him vulnerable. While empty, Otoishi is unable to use any skills, moves, even his Throw, or summon Red Hot Chili Pepper, leaving him with only his User Mode normal attacks. After the gauge has been fully drained, it will passively refill to about a quarter of a stock while in User Mode. It will then start passively draining again once reaching this point.
If it is filled past the first meter, Otoishi enters "MAX Electricity", increasing the damage and speed of his attacks involving Chili Pepper as well as altering their properties, with the Stand visually becoming brighter as more sparks and electric crackles come off of it.
If in Stand Mode, Chili Pepper can remain in MAX Electricity even after the gauge drops below the second level, provided Otoishi doesn't dismiss the Stand.
Rumble Mode (ゴゴゴモード, Gogogo Mōdo)
Activates when under 30% health
This mode is automatically activated once Otoishi falls below 30% health. It increases his attack power, as well as the rate at which the Heart Heat Gauge rises, while also decreasing the rate at which the Guard Gauge drops.
Skills [Stand On] (コマンド技)
More power than a jet engine
+ //
ON GROUND
Chili Pepper rushes a short distance forward in a flurry of flashy punches. The distance forward and damage dealt by this skill increases in order, but the greater the increase, the more Electricity it will cost and the more vulnerable Otoishi will become. This skill has two possible follow-ups, and is a Stand Rush skill that Otoishi can disconnect from to freely act while it is executing. (Flash Cancel comboable)
With MAX Electricity, this attack does more damage, the number of hits is increased, and Otoishi is left less vulnerable.
Chili Pepper delivers a final blow that sends the opponent flying backwards. A Stand Rush skill that Otoishi can disconnect from to freely act while it is executing. (Flash Cancel comboable)
With MAX Electricity, this attack deals more damage and executes faster.
Attack type: High Damage: 60 (normal) / 75 (MAX Electricity)
Gonna knock your ass out!
(During "More power than a jet engine") + //
ON GROUND
Chili Pepper delivers a final blow downward that causes the opponent to crumple to the ground. A Stand Rush skill that Otoishi can disconnect from to freely act while it is executing. (Comboable)
With MAX Electricity, this attack deals more damage and executes faster.
While this follow-up skill does not combo directly out of "More power than a jet engine", it can be made to combo by utilizing its ability to be Stand Rushed and using a User Mode normal to keep the opponent in hitstun.
A command Throw. Chili Pepper reaches forward a short distance, and if it connects, it converts the opponent into electricity and drags them into the ground. Chili Pepper then resurfaces and blasts them high into the air. The damage dealt increases in order, but the greater the increase, the more Electricity the skill will cost. (Flash Cancel comboable)
With MAX Electricity, this executes faster.
Otoishi's HHA can combo off of this skill, but it is a bit character dependent, so it will not work on the entire cast.
Attack type: Throw Damage: 145 / 155 / 165
Kiss this!
+ //
ON GROUND
A counter. Chili Pepper teasingly points to the side of its face, inviting the opponent to attack it. If hit with a non-HHA/GHA melee attack, Chili Pepper blasts them with electricity and sends them flying. The damage dealt increases in order, but the greater the increase, the more Electricity it costs and the more vulnerable Otoishi becomes. (Flash Cancel comboable)
With MAX Electricity, Chili Pepper will perform an uppercut after its initial attack, which will launch the opponent, who has been bound by the first hit, into the air. This attack also deals more damage and gains the ability to be jump canceled. However, it can no longer be Flash Canceled.
Red Hot Chili Pepper lifts the opponent up with one hand and shocks them while Otoishi plays his guitar, generating an electrical explosion that sends the opponent flying in the desired direction. If a back-throw is executed, Otoishi will face his back towards the opponent while playing his guitar rather than facing them fully. With MAX Electricity, this Throw deals more damage.
Otoishi taunts the opponent as Chili Pepper delivers an uppercut with its pinky finger out. If it connects, Chili Pepper converts the opponent into electricity and drags them into the ground as Otoishi begins a brief guitar solo. The opponent is dragged around in a circle around Otoishi, taking damage, before Chili Pepper resurfaces in an electric burst and throws them away to the timing of Otoishi finishing his solo.
This HHA can restore the Electricity Gauge to the first level if it is not already at it or above, and deals more damage when at MAX Electricity.
Attack type: High Damage: 168 (normal) / 206 (MAX Electricity)
You wanna get nuts?! Let's get nuts!
+ 3 ATK Buttons or
ON GROUND
Otoishi calls forth Chili Pepper to fly forward and deliver a punch. If it connects, Otoishi begins a passionate extended guitar solo whilst Chili Pepper delivers a ruthless combo.
Chili Pepper knocks the opponent back, before flashing behind and pummeling them with a flurry of blows. After a follow-up kick that sends the opponent forward, Chili Pepper then flashes in front of them and punches them again, before instantly reappearing above to knock them to the ground. The attack finishes with Red Hot Chili Pepper delivering a powerful haymaker to the opponent's face as Otoishi finishes his solo with a sweaty but grinning face as an audience can be heard cheering.
This GHA can restore the Electricity Gauge to the first level if it is not already at it or above, and deals more damage when at MAX Electricity.
Attack type: High Damage: 309 / 370 / 463 (depending on HH gauge)
Assist System (アシストシステム)
Assault Assist (アサルトアシスト, Asaruto Ashisuto)
ON GROUND
A one-stock assist. Otoishi lands in and starts playing a guitar solo as the whole stage darkens and multi-colored spotlights appear above him out of nowhere. While he is playing, the player's Heart Heat Gauge will slowly fill, up to a whole stock if the opponent does not interrupt Otoishi. Once he finishes, he will pose before jumping back off-screen. If he is interrupted, he will instead immediately jump back off-screen after picking himself up.
Reversal Assist (リバーサルアシスト, Ribāsaru Ashisuto)
ON GROUND
A two-stock assist. Otoishi jumps into the opponent while Red Hot Chili Pepper punches down at them, knocking them away. He then dismisses his Stand, poses, and jumps back off-screen.
Neither Otoishi nor Chili Pepper move as far forward as they did in All-Star Battle during this attack, resulting in this attack having reduced range. However, when Otoishi has MAX Electricity, the second hit of the uppercut will now launch opponents into the air.
Jumping Heavy Attack
IN AIR OK
The angle opponents are launched has been altered, leading to the opponent being launched slightly higher into the air, and therefore not as far. While it isn't too visually noticeable, the change now allows Otoishi to combo off of a successful hit.
Style/Specials/Etc. [Stand Off] (スタイル/特殊技/その他)
Charge
+
ON GROUNDCHARGEABLE
This move charges Otoishi's Electricity Gauge significantly faster than it did in All-Star Battle.
Right Hand Rockout
+
ON GROUND
The input for this move has changed. Previously it was in place of .
Electricity Gauge
Passive
The translation of the name of this passive has changed slightly. Previously it was "Power Gauge" instead of "Electricity Gauge".
Skills [Stand Off] (コマンド技)
Spitfire
+ // ( + for follow-up)
ON GROUND
The input for this skill has changed. Previously it was in place of . The follow-up input has also changed from to + . Furthermore, when Otoishi has MAX Electricity, this follow-up will now launch the opponent rather than knocking them to the ground.
Wack-A-Mole Champion
+ //
ON GROUND
The input for this skill has changed. Previously it was in place of . Instead of jumping from the first to the second electricity spot when using the variant, RHCP will now jump from the first to the third. This results in this variant being much more versatile now since it can hit the opponent in situations other than when they are moving forward. Additionally, when at MAX Electricity, the variant now causes a crumple like the other variants instead of launching the opponent into the air.
Normals [Stand On] (通常技)
Jumping Medium Attack
IN AIR OK
This normal now launches opponents on hit rather than only causing basic hitstun.
Style/Specials/Etc. [Stand On] (スタイル/特殊技/その他)
Charge
+
ON GROUNDCHARGEABLE
This move charges Otoishi's Electricity Gauge significantly faster than it did in All-Star Battle. Additionally, this special can now be used in Stand Mode instead of being a User Mode exclusive move.
Electricity Gauge
Passive
The translation of the name of this passive has changed slightly. Previously it was "Power Gauge" instead of "Electricity Gauge".
Skills [Stand On] (コマンド技)
More power than a jet engine
+ //
ON GROUND
RHCP does not travel nearly as far forward as it did in All-Star Battle for all variants. As a result, the opponent is not pushed as far away from Otoishi now. Furthermore, the damage now increases as the strength of the attack button inputted does instead of staying the same.
This just makes me stronger!
(During "More power than a jet engine") + //
ON GROUND
This skill no longer has a camera effect on it when it hits. It also now causes a wallbounce if the opponent hits the stage wall.
Gonna knock your ass out!
(During "More power than a jet engine") + //
ON GROUND
The input for this skill has changed. Previously it was in place of . Additionally, this follow-up skill no longer combos naturally off of "More power than a jet engine!", making it a bit more difficult to use. It also causes a crumple now instead of launching the opponent into the air.
I'll drag you in!
+ //
ON GROUND
Instead of having a damage increase when Otoishi has MAX Electricity, Chili Pepper instead gains a speed increase. This results in the grab executing slower than it did in All-Star Battle when Otoishi doesn't have MAX Electricity. To offset the loss of a damage increase, the variants now do increasing damage in order. However, the Electricity cost also increases in this order now as well.
Kiss this!
+ //
ON GROUND
When successfully activated Chili Pepper launches the opponent slightly into the air now rather than knocking them straight to the ground. If Otoishi has MAX Electricity, the attack will instead bind the opponent, and Chili Pepper will follow-up its initial attack with an uppercut that launches the opponent into the air instead of keeping the same hit effect. The skill also loses the ability to be Flash Canceled, instead gaining the ability to be jump canceled.
Heart Heat Attack / Great Heat Attack (ＨＨＡ / ＧＨＡ)
You wanna get nuts?! Let's get nuts!
+ 3 ATK Buttons or
ON GROUND
Visually, Chili Pepper travels out sooner than it did in All-Star Battle, however, the startup for this GHA is actually longer, causing this visual change to not match with the actual gameplay change.
General Changes
Otoishi's run speed in User Mode has been decreased.
Medal List
Costumes & Tints
Costumes
Normal
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The player's Heart Heat Gauge continuously refills. The player's defense is decreased.
Secret Missions
1. Use the "Right hand rockout" special: 1000 G 2. Land the "I'll drag you in!" skill: Akira Reference Sketch 3. Use a Great Heat Attack: Akira Color Tint C
Entrance Dialogue
Akira: You wanna sponsor the one and only Ultra Super Guitarist? Speedwagon: Me, a sponsor? What in the world do you mean?
Victory Dialogue
Akira: Don't give me that! You're with that Foundation Jotaro Kujo mentioned!
Defeat Dialogue
Speedwagon: Speedwagon Foundation?! I suppose I would like to make a name for myself someday...
Each round lasts only 30 seconds. The player's Heart Heat Gauge continuously refills.
Secret Missions
1. Use the "Charge" special: 1000 G 2. Land the "Time to get electric, baby!" throw: Red Hot Chili Pepper Publicity Artwork 3. Land a Great Heat Attack: Red Hot Chili Pepper 3D Model
Entrance Dialogue
Okuyasu: I'm ready to take you on! You're gonna be wiped right out of this world! Akira: You think you've cornered me?
Victory Dialogue
Akira: You're lacking in spirit... You can't get revenge if you can't outclass your brother!
Akira's theme is Ultra Super Guitarist (ウルトラ・スーパー・ギタリスト, Urutora Sūpā Gitarisuto), and can be unlocked in-game by buying it from the Gallery Shop for 1000 G.
Its name is taken from Akira's stated life dream in Chapter 46 of Diamond is Unbreakable. Specifically, he says "My dream is to be like Jimi Hendrix or Jeff Beck. To be an ultra super guitarist and live life hard and fast!"
Stand: Chili Pepper. A budding young rock guitarist. He steals the "Bow and Arrow" and half-heartedly starts experimenting with Stands. He's retired after losing to Josuke Higashikata 4 and Okuyasu, ending up in jail for theft.
The Stand of Akira Otoishi. It has the ability to manipulate electricity, and can travel at high speed through power outlets and along wires. As a long-distance operation type Stand, it becomes more and more powerful as it absorbs electricity.
Akira Otoishi's Stand that can manipulate electricity and travel at high speed through outlets and along power lines. It is a remote Stand that becomes more and more powerful as it absorbs charge.
Fixed bug where a Standing Light Attack would be performed instead when inputting this attack.
"Kiss this!" skill
No longer counter hits on a successful activation.
Reduced startup of the attack on a successful activation.
"Assault Assist"
Changed internal processing to correct an occurrence where the player was not gaining Heart Heat when Akira was called while Heart Heat was being used over time.
1.4.0
"Reversal Assist"
Fixed animation so only Red Hot Chili Pepper attacks the opponent.
1.4.1
"Reversal Assist"
Increased number of stocks from one to two.
1.5.0
Standing Heavy Attack [Stand Off]
Changed to two hit attack.
Attack now launches when landed with MAX Electricity.
Standing Medium Attack [Stand On]
Increased move distance.
"Gonna knock your ass out!" skill
Increased start up speed.
Increased speed of Stand animation near end of move.
Adjusted Stand Rush timing due to increased animation speed.
"I'll drag you in!" skill
Increased start up speed.
"Kiss this!" skill
Made Red Hot Chili Pepper move forward towards the opponent when successfully activated.
Changed to four hit attack when Electricity Gauge is full.
Made flash cancel available when Electricity Gauge is full.
Altered the animation when successfully activated and Electricity Gauge is full.
Added cammera effect when successfully activated and Electricity Gauge is full.
1.6.0
"Spitfire!" skill
Fixed issue where Akira's collision detection would disappear.
2.0.0
Standing Heavy Attack [Stand Off]
Enabled the ability to cancel on the first hit.
Adjusted the upward launching force of the second hit when Electricity Gauge is full.
Fixed a bug where Red Hot Chili Pepper would attack upward if this attack was used immediately after Stylish Guarding an aerial attack.
"Wack-A-Mole Champion" skill
This skill will no longer activate counters.
"Kiss this!" skill
Changed cancel properties.
Not MAX electricity: Enabled ability to Flash Cancel.
MAX electricity: Enabled ability to Jump Cancel.
Fixed an issue where the final hit would sometimes not connect against characters with a horizontally narrow hurtbox.
2.1.0
"Kiss this!" skill
Fixed a bug where the MAX Electricity version of this skill would sometimes whiff when the counter was activated by the and variants of Esidisi's "Burning King's Prison" skill.
Increased the size of the hitbox.
2.2.0
"I'll drag you in!" skill
Fixed a bug where this skill could hit opponents that should be immune to throws.
2.3.0
Standing Medium Attack [Stand Off]
Increased forward movement while attacking.
Standing Heavy Attack [Stand Off]
Increased launching force of the second hit when at MAX electricity.
Crouching Medium Attack [Stand Off]
Increased Red Hot Chili Pepper's forward movement while attacking.
Decreased knockback on hit.
Crouching Heavy Attack [Stand Off]
Increased Red Hot Chili Pepper's forward movement while attacking.
"Whack-A-Mole Champion" skill
Adjusted the launch direction and lifting force for more consistency and reward the stronger the variant used.
"This just makes me stronger!" skill
Increased size of hitbox.
Increased Red Hot Chili Pepper's forward movement while attacking.
"I'll beat you with my pinky!" HHA
Made it so when this HHA hits, it will set Akira's electricity level to MAX.
Taunt Lines
Reference Sketch
Buffs
Nerfs
Neutral
Taunt B
Victory B
Victory C
Victory D
Victory E
Ultra Super Guitarist (ウルトラ・スーパー・ギタリスト, Urutora Sūpā Gitarisuto), and can be unlocked in-game by buying it from the Gallery Shop for 
1000 G.
Land the "I'll drag you in!" skill
Otoishi's intro
Otoishi's Throw
Otoishi's guitar solo during his GHA
and 
variants of Esidisi's "Burning King's Prison" skill.
