All-Star Battle/Diavolo

Diavolo is a playable character in All-Star Battle. As one of the seven main antagonists, Diavolo is stronger than most characters and his ability to cause massive damage per individual hit makes up for his limited combos.

As one of the majority of playable characters in the game with the "Stand" Style, Diavolo can turn King Crimson on/off, changing movesets. However, unlike the vast majority of Stand Users in the game, he does not have access to the Stand Rush ability that returns from the Capcom game; None of his skills allow him to attack in conjunction with his Stand, as every single one of his attacks, including all of his normal attacks, are delivered solely by King Crimson. He shares this trait with Hol Horse and Guido Mista.

King Crimson acts as a powerful Stand whose melee attacks deal great single-hit damage and easily knock the opponent off their feet. When it is active, Diavolo's Heavy ground and air normal attacks knock the opponent down, and his crouching Heavy attack knocks the opponent into the air; His crouching Medium attack fills in the role of tripping the opponent. These melee attacks can be used to set up combos as most of his skills lack the potential to do so. Diavolo has 900 HP.

Gameplay Overview
Diavolo is a close-ranged, bruiser-style of fighter specializing in heavy single hits. As both his HHA and GHA are not striking attacks that can be used in combos, his damage output is intrinsically higher to compensate. This allows his combos to remove higher amounts of health even without the need for Flash-Cancelling to extend them, making his power consistently formidable. Although he boasts great striking power while in Stand Off, while King Crimson is active, he becomes more suited towards grappling with both a command Throw and anti-air attack to intimidate defensive foes. Diavolo's various counters assist his offense by forcing his opponent to act cautiously when attacking, especially when he has the Heart Heat necessary to use his greater special powers that neutralize their abilities in various ways. Said counters also alleviate any opportune readiness to punish his attacks, and he can easily overcome projectile-wielding characters.

That being said, Diavolo's attacks are slower and his abilities are limited in quantity. While he excels at close-quarters combat, he is incongruous with an aggressive, "rushdown" style of play; This is due to the holes in his offense often leaving him open to retaliation. As he places emphasis on counters, inopportune attempts to use them can result in punishment. Diavolo possesses lower-than-average health, and slower Heart Heat generation, meaning that he can afford to make fewer mistakes in battle. To wield him with any degree of success necessitates better experience and understanding of the game's mechanics than most.

In essence, Diavolo is a brutish combatant who unleashes tremendous damage for much less effort than other characters. His balanced mix of offensive and defensive techniques, simplified combo structures, and naturally high damage-dealing capabilities have led him to being viewed as one of the best characters in the game, debatably the best alongside Joseph Joestar and Giorno.

Miscellaneous
If Diavolo is Retired via any attack that does not result in a knockdown, he will fall to his knees and weakly point at the opponent in fear, mirroring one of his infinite deaths in the story. If Retired by Giorno himself, he will furiously call him a brat, referencing his final moments against Giorno before being defeated.

Diavolo is the only villain from Part 5 to appear in the game as a playable character, the third tallest character in the game behind Joseph Joestar and Wamuu (slightly taller than even DIO and the same height as any other Part 3 character), and also the only character to have 2 characters appearing during his intro (Diavolo and Doppio). For two of his victory poses, Doppio is used instead of Diavolo, and Doppio speaks several of his own (his "phone's" ringtone, answering the phone, his statement about the world being filled with idiots, etc.). Notably enough, Diavolo has no post-match special lines, regardless of whom he's fighting; All opponents that Diavolo has unique dialogue with will trigger special intro lines, though should Diavolo win the match, he will simply use whatever line of victory dialogue that was set for him, if not the default. However, this is changed for All Star Battle R, where Diavolo is given unique victory quotes which are carried over from Eyes of Heaven.