Danganronpa: Trigger Happy Havoc. I played it years ago on Vita. It's been kind of a funny experience playing it again probably close to ten years later on a completely different handheld device(Steam Deck). I never actually finished it on Vita and it's been long enough that I've forgotten a lot of the details of each of the trials.
The trilogy plus Ultra Despair Girls was on sale on Steam in November. Got all of it for $16 CAD when the bundle is normally $91.
Ultra Despair Girls and V3 seem to have somewhat mixed reviews but most everyone who reviewed 1 and 2 seems to really like those two.