As a Stand user, Fugo is one of many characters with wildly varied abilities that grant him uniqueness in battle. Similar to All-Star Battle, Fugo's attacks allow him to unleash Purple Haze's Homicidal Virus. Anyone infected slowly loses health over time and takes increased damage from all sources. The virus is potent enough to even break health gauges by itself, contrasting other health-depleting status ailments whose effects are barred from doing the same. However, Fugo himself and even his own partner are not immune to being infected. Of note is that if Fugo is guarding when the Homicidal Virus breaks a health gauge of his, he will not be Downed nor gain the associated invincibility.
In his moveset all references to Purple Haze Feedback have been removed, including the ability to evolve Purple Haze into Purple Haze Distortion. Because of this change, Fugo's moveset and dialogue have been altered accordingly. The game still features theoretical interactions between him and the other Part 5 characters in the context that they're encountering each other after Team Bucciarati's betrayal: Fugo still remains a reluctant member of Passione who interacts with his former allies with some level of regret, either shown awkwardly chatting if paired up with them, or hesitantly preparing to battle if matched against them.
Similar to Fugo's Purple Haze Distortion power-up in All-Star Battle, entering Dual Combo mode or Soul Succession will affect the virus. Until the Dual Combo window ends or the Soul Succession health bar is broken, the virus will do more damage to enemies, less damage to Fugo, and won't stagger him upon being infected. While this effect is active, the large virus cloud created when a capsule is broken against the ground is unavailable. All broken capsules will create the smaller cloud, and the visual effect of the cloud itself has changed.
A display above Fugo's health gauge shows his current amount of Purple Haze's Homicidal Virus Capsules, out of 6. When a capsule is broken, it will leave a temporary purple cloud of the virus as a trap. The capsules will slowly replenish over time, and will also instantly reset to full upon a Dual Combo, DHA, or Soul Succession activating.
Style Action - Homicidal Virus
Fugo summons Purple Haze to fire off a single one of its Homicidal Virus Capsules. If a capsule makes contact with the ground, it will become a large cloud with immense vertical range, but if it hits a wall, obstacle, or opponent, the cloud produced will be considerably smaller. If not locked on, Purple Haze will fire the capsule downward and at an angle towards the ground, the resulting cloud's range stopping short of Fugo himself. If locked on, the capsule will be fired at Fugo's target as a straight-flying projectile. Any skill where Purple Haze attacks also allows the Stand to consume a capsule and release the virus.
Once you see my ability, you'll die.
Purple Haze flies forward before delivering a downward punch, knocking down any opponent it hits. Fugo's Style Action can be inputted to release a cloud of the Homicidal Virus if it successfully makes contact.
Purple Haze attacks by unleashing a wild barrage of 16 punches, first throwing a single punch, then the rest after a short delay with the last punch sending opponents flying. Any opponent caught by the first punch is guaranteed to be hit by the remaining 15. Fugo's Style Action can be inputted to release a cloud of the Homicidal Virus if it successfully makes contact.
Nobody stand near Purple Haze when he punches...
Fugo temporarily powers up Purple Haze, causing the next attack that releases the Homicidal Virus attack to instead consume and unleash 3 capsules at once, the outer capsules having diverging paths. This causes the Style Action to always fire downwards, regardless if Fugo is locked onto a target or not. When done from high places, the effective range of the Homicidal Virus is increased to cover large areas.
EX - Once you see my ability, you'll die.
Fugo is granted super armor until the punch is thrown, and Purple Haze flies farther and with increased speed.
EX - Hit them!
The attack deals more damage, and Fugo is granted super armor for the entire duration of the attack.
Dual Heat Attacks
Solo - Ferocity is when you attack explosively, and then disperse like a storm...
Purple Haze punches the opponent off-balance while breaking a capsule, causing them to become infected with the Homicidal Virus as Fugo begins to define what "ferocity" is. The Stand, hardly able to contain its rage, begins to violently and relentlessly beat the opponent, spreading the virus into their system even more, all while Fugo himself calmly asserts that ferocity is "attacking like an explosion, then retreating like a storm". Purple Haze finishes by delivering a devastating spinning punch that sends them flying as they're completely eradicated.
Fugo has Purple Haze assault the opponent, firing its Virus Capsules at them after sending them flying. He then prompts Narancia to attack, with the two watching as Aerosmith shoots both the opponent and the capsules surrounding them, causing the capsules to break open and the target to completely melt.