Jupiter Eagle appears on floors 1 and 2 of Magatsu Inaba within the Midnight Channel. They will attack using Maragion and physical strikes. Once defeated, they may drop a God Tailfeather. Selling 4 God Tailfeathers will unlock the Noblesse Oblige ougi for Yukiko Amagi in the shop.
In Golden, they appear on the floors listed above. They may drop Aurora Quartz for trade at Shiroku Pub.
Jupiter Eagle appears in Areas 2 and 3 of the second Theater, Junessic Land. It attacks with Physical skills. When defeated, it may drop Eagle Crystal and Eagle Feather. Eagle Crystal is used to create the Sequoia Mace for Ryuji, the Marble Axe for Haru, the Great Bird Fan for Yukiko, and the Manly Jinbei male armor. Eagle Feather is used to create the Type-98 Gunto for Yusuke, the Dai Naginata for the P3P heroine, the Platform Sneaks for Chie, the Hanachirusato for Yukiko, and the Survival Guard unisex armor.