Silksong is hidden behind one of these

Etrian Odyssey 2 Untold: The Fafnir Knight: Rough Sketch Soundtrack

THE GHOST IN THE SHELL - GO GHOST

Arcane: League of Legends: Season 2 (Original Score) Volume 1

Persona 5 Prototype Soundtrack

Phoenix Wright: Ace Attorney Sound BOX

Guilty Gear -Strive- Original Soundtrack Vol.1

We are PAC-MAN!

Pandora's Tower Gamerip Soundtrack

Professor Layton and the Azran Legacy Original Soundtrack

Log Horizon - database

AFK Journey World Themes Collection Vol. 1 - Echoes of the Journey

Granblue Fantasy Original Soundtrack Light