Very kawaii!
I never played the first Mirai game so I am reviewing this from the perspective of a Project Diva player.
I used to look down on the nendoroid graphics for Mirai but when I got to see these nendoroids singing and dancing on the 3ds, I fell to the moeness. The graphics are so cute! Very colorful and looks very fantastic on the 3ds. I have not unlocked all songs yet but I find the nendoroid versions of songs I played on Project Diva like Romeo and Cinderlla and World is Mine very amusing.
You can play the game with the stylus or just the facebuttons. There is also a bonus puyo puyo game in there.
Mirai 2 also comes with a lot of AR cards.
Nice selection of songs, cute graphics, fun rhythm gameplay, and the packaging. Worth it.