Most handhelds tbh.
I didn’t really grow up with “traditional” (home) consoles, but I always had handhelds (and a PC).
I have trouble going back to most handheld games pre-Vita nowadays, even if I remember the PSP (and GBA to a certain extent) fondly, between the controls, smaller screen and cut versions of games vs their home console counterparts, it’s hard to go back. Emulation makes it somewhat nicer for me, but still.
And let’s not begin with GB or GG games, they have a certain charm, but I usually can’t stand them for more than 5 mins nowadays.