Golden Beetle first appears as a sub-boss found in the Arqa Block on the 47th floor of Tartarus, encountered in a group of three. They impede the party's progress and must be beaten to proceed. They are neutral to Distress, Rage, and Panic, while blocking all other ailments. They are later encountered as normal enemies in the Yabbashah Block of Tartarus, from floors 78 to 89.
The boss fight with the Golden Beetles always begins with the Beetles each getting a free turn, which they will use to cast Tarukaja on themselves. They also possess high defense, which makes it difficult to damage them. Bring Akihiko and Personas that know Electricity spells to exploit their weakness and gain easy All-Out Attacks. Depending on the turn order, it may be wise to not go for the All-Out Attack and force the Beetles to waste a turn getting up. While not set as a weakness, these Golden Beetles take 25% additional damage from Fire and Wind attacks.
Persona 4 / Golden
Strength Beetle appears in Chapters 5 and 6 of the Void Quest within the Midnight Channel. When defeated, it may drop Golden Horn. Selling six Golden Horns at Daidara Metalworks will unlock the Plate Mail male armor in the shop.
In Golden, it may appear in Chapters 5 through 9. It may also drop Howlite for trade at Shiroku Pub.
Golden Beetle appears in Area 4 of the second Theater, Junessic Land. It has an Affinity Barrier that helps it resist all incoming damage until it breaks once low on HP. After its barrier breaks, it will become weak to Psy, Nuclear, Bless, and Curse skills. The party can break its barrier faster by using Poison to quickly reduce its HP total. When defeated, it may drop Beetle Sap and Beetle Crystal.Beetle Sap is used to create the Obsidian Knife for the P5 hero, the Primal Naginata for the P3P heroine, the Mythic Sword for Junpei and the P4 hero, the Power Plate for Kanji, and the Raging Bull for Naoto. Beetle Crystal is used to create the Enhanced Armor unisex armor.