Order Giant appears in B7F and B8F of the Secret Laboratory within the Midnight Channel. It will alternate between using Hamaon and physical attacks. Upon being defeated, it may drop the Fixed Lump material. Selling 10 Fixed Lumps will unlock the Golden Plate weapon for Kanji Tatsumi in the shop.
In Golden, it appears in B3F, B4F, B6F and B7F. It may also drop Buffalo Stone for trade at Shiroku Pub.
Persona Q: Shadow of the Labyrinth
Order Giant appears in 8F and 9F of the Clock Tower. It is the only giant Shadow faced in random encounters that does not have a gold counterpart. Giant sword is obtained by finishing him off with a stab move.
Persona Q2: New Cinema Labyrinth
Order Giant appears in the Theater District Final 4, and can drop Giant Cache and Giant Right Arm. It is weak to Wind, and resists Fire and Electric.
It appears to share the same model as Order Gigant, a boss encountered in ???.