Astonishia Story

[Garamonde]

I don't think I can't help with the extremely in-depth/complex stuff with GBA ripping, but hopefully, if you can't figure out Tile Molester or Tile Layer Pro (which is the program I used for PMD because I was too dumb to know how to use TM back then), you can find some info on TM online (I can't link due to not being on a CPU, but Ragey's Flying Omelette website has LOTS of useful advice).