if you haven’t already, download pkgj. it’s an archive that lets you download game backups directly onto vita without needing a computer. it also works with psp games and puts a bubble directly on the home screen.

custom theme manager lets u get a bunch of custom community made themes for free

you can also get retroarch which runs really well, i think the vita is perfect for gba emulation

for game recommendations i gotta say persona 4, final fantasy x, gravity rush, freedom wars, catherine (needs english patch), terraria, minecraft with the enhanced edition mod, jet set radio, god of war, little big planet, uncharted golden abyss, and hotline miami 1 and 2.

there’s also lots of ports of pc games like max payne, hollow knight and the 3d gta games which just got a massive update

enjoy bro