Accuracy, also referred to as Accuracy/Evasion (命中・回避, Meichū/Kaihi)? and Hit/Evasion, is a recurring element in the series. Accuracy is a battle property that determines how likely it is for an attack to successfully hit. It is usually distinguished by "evasion," which is an additional property that instead calculates the user's evasion against enemy attacks.
Missing attacks usually only results in the user being unsuccessful in dealing damage. However, in Persona 3 and Persona 4, missing while performing a melee attack can result in the user being Downed. In games that use the Press Turn battle system such as Shin Megami Tensei III: Nocturne, Shin Megami Tensei IV, Shin Megami Tensei IV Apocalypse, or the Digital Devil Saga duology, missed attacks will use up more turn icons.
The difference between accuracy and evasion is important, particularly for scenarios where only one of the stats is boosted: for example, although certain passive skills may boost the user's "accuracy," the change won't influence the user's odds of evasion when calculating enemy attack.
The user's own accuracy, as well as the target's evasion rate are put into consideration. Both are mainly determined by the Agility stat.
These stats can be directly influenced by Sukukaja and Sukunda, common support skills in the series. Although inconclusive to every entry in the series, the Accuracy/Evasion multipliers have been found to follow the same multipliers as damage modifiers in several games, such as from Tarukaja and Rakukaja. Ailments are also able to affect the accuracy and evasion in some way.
Generally, each individual attack skill has an assigned hit rate. The same applies to the user's equipped weapon, which is instead applied to the calculation when a melee attack is performed.
Certain status ailments are also able to influence the user's accuracy and evasion. If the user is afflicted with Distress, Freeze, Shock, Dizzy and/or Down, they will be unable to evade. If afflicted with Rage, their attack accuracy will be decreased.
If the user is afflicted with Rage, their attack accuracy will be decreased.
Aside from the Dodge Fire and Evade Fire category of skills, there are more passive skills which help with evasion, such as Angelic Grace, which helps avoid general magic attacks and Ali Dance, which goes against any attacks.
There are also passive skills with more unique properties: Climate Decorum, which only works in rainy or special weather, Pressing Stance, which activates only when the user is in an ambush, Firm Stance, halves the damage the user takes in battle, while nullifying their evasion entirely.
Shin Megami Tensei V
In Shin Megami Tensei V, the accuracy of skills is more specific: most skills have 98% accuracy by default, with all low-hit skills, such as Hellish Slash, being set up at 50%.
There are also skills that exceed the 100% cap, presumably helping in protecting against accuracy disadvantages, as the final result will always be 100%: certain skills have 108% accuracy, while Gungnir and Keraunos both have 118%.
Support, Recovery and Ailment skills all have "255" set up as their accuracy. The number establishes that these skills cannot miss under any circumstances. Ailment skills in particular follow a different accuracy check, which is associated with the infliction itself, preventing the user from losing multiple turn icons should the ailment fail to be afflicted.
Magatsuhi skills, offensive included, all also have the same accuracy value of 255, meaning they cannot miss.
The Sleep and Mirage ailments both influence accuracy in one way or another: Sleep makes it impossible for the afflicted entity to evade attacks, while Mirage greatly lowers their accuracy.
Critical Aura also grants the user's next Strength-based attack guaranteed accuracy.
Weapon Hit Rate
Gun Hit Rate
In Persona 5 Strikers, the general factors of accuracy and evasion are rid of and skills don't have accuracy values. Instead, each character is able to Auto-Evade, a technique that's an alternative to the party's ability to manually evade via controls. The property is affected by the Agility stat as well.
Sukukaja and Sukunda play the role of increasing and decreasing the odds of Auto-Evasion.