L: The Upper collection is available after purchasing through the app. There are 5 songs in this collection. This collection features 5 songs from Chapter L of Cytus.
- The note count for each difficulties of each song ends with the song's number; i.e. L6's note counts end with 6, L7's note counts end with 7, etc.
- gaQdan, who was in charge of the arrangements in Implosion, was responsible for the orchestral arrangements.
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