Underwater3_MapBorder:: .incbin "data/layouts/Underwater3/border.bin" Underwater3_MapBlockdata:: .incbin "data/layouts/Underwater3/map.bin" .align 2 Underwater3_Layout:: .4byte 0x50 .4byte 0x50 .4byte Underwater3_MapBorder .4byte Underwater3_MapBlockdata .4byte gTileset_General .4byte gTileset_Underwater