Love Live Vita impressions:
The game is half VN and there is a lot of text.
The gameplay itself from what I have seen is a much simpler Project Diva where there is only 3 type of notes, notes that you either have to hit a face button or the right side of the screen, notes you have to hit the d pad or the left side of the screen , and notes where you have to hit both d pad and face buttons or both sides of the screen.
There is things called gimmicks that have different heart values for but I have no idea what any of them do and features where it seems once you fill your tension gauge (I'm not entirely sure what this does, it may just be the bar you have to keep full to survive) or three stars on the bottom left hand screen you can activate a character. Because I bought the Lily White version of the game the 3 characters I have are Rin, Umi and Nozomi. When activated, a character will show up on the screen and trace an outline with her finger. I believe you have to do this as well. When i did this with Umi, she said something along the lines of "shooting her love arrow" I believe, which I only recognize because the UR Umi card I have from the F2P version says the same thing.
The score breaks down into rhythm, Gimmick and Feature points. Rhythm seems to be worth the most points by quite a bit.
Every option on the menu is locked currently for me other then Story mode, Settings and PSN. I've played a couple scenarios and have unlocked 5 songs thus far. With every song I have acquired I have also unlocked a new outfit for girls to wear. I think there is categories assigned to each outfit and song but am not 100% sure of this.
While the Lily White members are front and centre over the game every Muse member shows up in the stories and in the songs where they are involved, it seems.