Now we have other three songs with Takara no Oka, The Magician's Dream and that piece o'crap that is the Tsundere song, closing the K-D CreoFuga song circle.
The Baidu Tieba user also started unlocking Uras (of course, beginning with Senbonzakura), but it's unclear whether Uras are unlocked with ridiculously-high drum counters like on Wii U1 or not...
EDIT: Ura modes are apparently unlocked just like 3DS2, as the guy over here is unlocking them quite fast. So far we count Senbonzakura, Rokuchunen, Rumble Ranbu and... the Turkish March? Didin't see that one coming. 9* Ura Oni.