first, there is no unique sound effect from each nijisanji member (like when hit an obstacle, killing the zombie, first time getting it, on main screen, when died and level up)
second, this game giving like those crappy game vibe.
third, each character skill in parameter really mismatch (already got them all member for writing thIs review).
fourth, there is no graphics option.
so this is my personal experience after playing the game if I must give score 2/10.