Page history
15 November 2015
12 November 2015
19 September 2015
11 July 2015
8 July 2015
3 July 2015
11 February 2015
26 January 2015
23 January 2015
22 January 2015
no edit summary
+1
Because I earlier mentioned that HAPPY ANGEL does count.
m+9
It's not just any Ryu☆ song. HAPPY ANGEL and Don't Stop! apparently count as well.
−7
I don't know if this is the exact unlock condition.
+162