Underwater1_MapBorder:: .incbin "data/layouts/Underwater1/border.bin" Underwater1_MapBlockdata:: .incbin "data/layouts/Underwater1/map.bin" .align 2 Underwater1_Layout:: .4byte 0x50 .4byte 0x50 .4byte Underwater1_MapBorder .4byte Underwater1_MapBlockdata .4byte gTileset_General .4byte gTileset_Underwater