I have played a lot of them, included Arcade and phone games
Arcade
- maimai (the latest MiLK I haven't played it yet)
- jubeat (not actual one but just a plagarize version)
- Sound Voltex (I can't recall what the version is since I just played once or twice)
- Groove Coaster (I think this should be the easiest arcade rhythm game at all)
Phone
- Love Live School Idol Project (JP, Account lost)
- Idolmaster Cinderella Girls Starlight Stage (ID: 671264519)
- Idolmaster Million Live (ID: x)
- Arcaea (Kind of a mobile version of Chunithm)
- Cytus
- Cytus II
- Deemo
- VOEZ
- Tokimeki Idol (FIRETRUCK YOU KONAMI, ID: 733114394)
- Girlfriend Note
- Bang Dream! Girls Band Party (JP, ID: 74583933)