Disclaimer: This song is copyrighted by Konami, therefore, I do not own this audio.
Today is 猫又Master appreciation day! Here's the song, NOW APPRECIATE IT!
No download link because I say so.
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Song Name: Greening Long Version
Artist: 猫又Master
Genre: GREENING
Game the Song Came From: ポップンミュージックポータブル (Pop'n Music Portable)