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Emperor Ing Chrysalis is the name of the theme that plays during the battle with the first and second forms of the Emperor Ing. Its name comes from the Soundtrack Gallery in Metroid Prime Trilogy. Emperor Ing Chrysalis is included in the Samus Archives Sound Selection CD soundtrack, included with the Special and Legacy Editions of Metroid: Samus Returns. Here it is titled Theme of Emperor Ing.
It can be heard here: .