Help | Gbafun is a website let you play Retro Gameboy advance / color , GBA, GBC games online in your web browser, Pokemon games, Zelda, Super mario, yu-gi-oh using flash emulator.
GameBoy Advance by David McLeod on Dribbble
configure_a_controller [Batocera.linux - Wiki]
To anyone having trouble mapping No$GBA buttons on a Dualshock 4, these are the numbers to make it work right : r/emulation