Wow, Wonderswan! It's impressive to see that running. Despite the slowdown on many games (RIP every Digimon game) the Final Fantasy ports seem very playable, which I love to see. These games really suit the GBA screen.
I did struggle to get a working save file though. I can save, return to the title screen, and load, but as soon as I reset or exit out, it's gone. Even if I dump the SRAM to a .sav and load it before booting up the game/emulator, I'm getting nothing.
Save/Load states don't seem functional either.