Arcane Turret is a sub-boss found on the 122nd floor of Tartarus in a group of three. They impede the player's progress and must be beaten to continue. It also appears as a normal enemy in the Tziah Block of Tartarus, between floors 115 to 138.
They will return in the second and third sections of Caina within the Abyss of Time during The Answer.
Arcane Turret appears on the 9th and 10th floors of the Marukyu Striptease within the Midnight Channel. In battle it will either attack or use Mind Charge followed by a Bufudyne spell. While not having any weaknesses, it can be afflicted with status ailments. Upon being defeated, it may drop the Sheet Metal material. Selling 6 Sheet Metals at Daidara will unlock the Knight Scale male armor in the shop.
In Golden, Arcane Turret appears on floors 7 through 10. It may drop Lepidolite for trade at Shiroku Pub.
Arcane Turrets have a chance of attacking twice during a turn. If defeated with Darkness-based attacks they drop the "Turret Belt" material, which is required to create the ultimate weapons for Aigis, Ken, Koromaru, Yosuke, and Yukiko.