Heya, thank you for playing the game and giving us feedback!
Yes, the UI artist and the character artist are the same person! She did put in a ton of effort into it! Will relay the compliments to her and drill it into her head that her work is amazing ദ്ദി ˉ͈̀꒳ˉ͈́ )✧
The fever time is every 30/10 combos (depending on the song) made outside of fever, but it's absolutely not obvious;_; sorry for that