Games that can be played on a handheld but aren’t really meant for it (e.g. most stuff on the Steam Deck) doesn’t really count.
Zelda: Oracle of Seasons (GBC)
Runner up: Pokemon gold/silver (GBC)You like seasons better than Ages?
I liked ages for the complexity of the changes (whole areas being different in past/future vs paths blocked/accessible in seasons) but the overall feel of OoS was more fun to me, especially the more vibrant color pallate changes between seasons
Metroid Fusion was a banger. I didn’t even own a Gameboy, but my friend did, and I would trade him half my allowance every week to let me borrow it over the weekend. Many many nights were spent up late under the covers exploring BSL Station.
Dude playing MHFU on PSP with friends was literally peak gaming!
Boktai 2: Solar Boy Django. You play a vampire hunter with a solar powered gun, and the gimmick is that the GBA cartridge contains a UV sensor so that you’re required to go outside and use real sunlight. It’s such an absurd gimmick, but it works. It works incredibly well and makes it an unforgettable experience.
The first game is alright, but the second is where the series really came into its own.
BotW hands down, but Pokemon Emerald is always a great option for emulators. Or any Fire Emblem game.
I just got a handheld emulation machine that runs pretty much anything up to Dreamcast, and having a huge chunk of the history of gaming in my pocket has been rad as hell.
Rediscovering a lot of GBA games has been a lot of fun. Wario Land 4 is so fucking good, and I feel like it’s been completely forgotten.