- Level Easy, Hard and Chaos: At Xenon's song selection screen, press the dark circular sign that says 'Deemos'.
- This song is a hidden song.
- This song can also be found in Deemo.
- Sairai (再来) is Japanese for "Return" or "Second Coming".
- Its time signature is 3/4 and changes to 4/4 towards the end.
L1: The Devastated Lower - L2: Ascension To The Upper - L3: Roar, On The Deserted Lands - L4: The Unrevealed - L5: The Revealed - L6: Viz Awakened - L7: Almighty - L8: Meteor - Farewell - L9: Meteo - Mourn - L10: In Memory of Maneo. - L1: The Devastated Lower (Old Chart) - L2 : Ascension To The Upper (Old Chart) - L4 : The Unrevealed (Old Chart) - L6 : Viz Awakened (Old Chart) - L7 : Almighty (Old Chart) - L8 : Meteor - Farewell (Old Chart) - L9 : Meteo - Mourn (Old Chart) - L10: In Memory of Maneo. (Old Chart) - L3 : Roar, On The Deserted Lands (Old Chart) - L5 : The Revealed (Old Chart)
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