The Switch version seems to be the one to get, it includes the extra characters for Arcade Mode+ that are DLC in the PS4 and Steam version. Which are all very good. Homura is a baseball player who hits the bullets back at enemies. Tatsujin literally plays like Truxton. You know Clarice
Arrange mode of Classic mode (which I think is basically the Saturn version) has a load of cutscenes which so far are mostly just the characters doing bits with each other. And they're subtitled! Apparently this was hard to do!