The Indignant Machine can be summoned by the Emaciated Garcy in Hollow Forest. After using one of the elemental Breaks, it may cast the corresponding Ma-dyne elemental spell. After battle, it may drop Sentou Fruit, Revival Bead or Sacred Branch.
Persona Q: Shadow of the Labyrinth
The Indignant Machine is a strong Shadow that appears on the 3th and 4th Night of Inaba Pride Exhibit and ambushes the party at P-Spots there. It has particularly strong physical elemental attacks along with Colossal Swing that occasionally adds a splash effect to them, so avoid placing party members with similar weaknesses next to each other when fighting it.