anyway
LLSIF or long-discontinued Love Live! School Idol Festival was probably one of few mobile rhythm games which actually were made with touch screen in mind, instead of being VSRG slop, you had a semi-circle with 9 buttons but and so you got normal taps, two finger taps, holds, as well as sliders where you had to slide alongside the semicircle.
some events also had AC charts which came from SIFAC, the arcade cabinet adaptation. and it also had a semi circle but the buttons were huge and allowed for some more advanced patterns like four-finger taps, or rather two-hand taps, and this also got ported to mobile game in occasional AC charts and god it was some janky shit, imagine being used to using two fingers at most in this game and then this four finger combo shows up on your 4 inch screen with shitty two-point touch display
Yeah