A group of three Arcane Turrets serve as a sub-boss guarding the 122nd floor of Tartarus in a group of three. They are neutral to Distress, Panic, and Rage, while blocking all other ailments. It also appears as a normal enemy in the Tziah Block of Tartarus, between floors 115 to 138.
Because these sub-bosses have Ziodyne as one of their skills, bringing Aigis to this fight is not recommended due to her weakness to Electricity. Mitsuru is a recommended party member for this fight due to her Mabufu and Bufula skills despite her weakness to Fire, because she can be used to knock down the enemies and perform an All-Out Attack for heavy damage. Wind skills are also recommended over Almighty attacks, as they deal extra damage though do not knock down.
If the Arcane Turrets threaten to attack next, you can opt to pass up the All-Out Attack opportunity and force them to waste turns getting back up (P3/FES) or make them Dizzy with a follow-up Ice attack (Portable).
They will return in the second and third sections of Caina within the Abyss of Time during The Answer.
In Golden, Arcane Turret appears on floors 7 through 10. It may also drop Olive Stone for trade at Shiroku Pub. Selling four Sheet Metals is enough to unlock the Knight Scale.
Persona Q: Shadow of the Labyrinth[]
Arcane Turret appears on floors 1 through 5 of the Clock Tower. It is weak to Fire and has a chance of attacking twice during its turn. When defeated, it may drop Turret Piece, Turret Cannon, and Turret Belt. Turret Piece is used to create the Eliminator for Shinjiro. Turret Cannon is used to create the Voulge for Ken. Turret Belt, only obtainable by killing Arcane Turret with Darkness, is used to create the Gae Bolg for Ken, the Vajra* for Koromaru, the Nandaka for Yosuke, the Metatronius for Aigis, and the Peacock Tail for Yukiko.
Persona Q2: New Cinema Labyrinth[]
Arcane Turret appears in Special Screening #33: Social Network, unlocked by completing Act 7 of the fourth Theater, Hikari. The group is tasked by their navigatorsFuuka, Rise, and Futaba to collect three Futuristic Gizmos in A.I.G.I.S. in order to create a machine that will amplify their navigation skills. The items are dropped by Roaring Turrets, which are weak to Psychokinesis and susceptible to all Binds plus Panic. The Screening is not complete until after the two following battles, where an Arcane Turret joins Roaring Turret. Weak to both Electricity and Psychokinesis, Arcane Turret has much more HP and resists all other elements. After surviving an All-Out Attack, it will cast a resist spell for the respective element.