I replaced the background, changing the register # $ 2003 (blue), while filling the window.
I have yet to be fully not finish, still need to post the menu and battles. There used 4bpp, for a place 2bpp.
What about the window. I want to add more h-dma, to look beautiful.
What about the patch. I rewrote for hacking the ROM hirom, so it was convenient. Changed the system S-ram. Because in Hirom address $ 30:6000.
But as completed yet, will put a patch, it will be a good occasion to re-translation.