- Bubbly Time is the first default hidden song in pop'n music 20 fantasia.
- As of October 1st, 2012, it is available by default.
- It is currently speculated that Fantastic Bubbly9 is Tatsuya Iyama, due of the similarities of Bubbly Time and some of Tatsuya Iyama's songs.
- The 9 in Fantastic Bubbly9 (pronounced "kyuu") is pronounced the same as Q, a possible reference to Tatsuya's Qrispy Joybox alias.
Song Production Information
Difficulty & Notecounts
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