diff --git a/.gitignore b/.gitignore
index f4234c5aaa..25be9db784 100644
--- a/.gitignore
+++ b/.gitignore
@@ -31,3 +31,4 @@ data2old.s
 dump baserom msys code.txt
 *.lnk
 baserom.rar
+datadump/
diff --git a/data/fieldmap.s b/data/fieldmap.s
index e2cc537da5..83b0b2a501 100644
--- a/data/fieldmap.s
+++ b/data/fieldmap.s
@@ -5,4 +5,5 @@
     .align 2, 0
 
 gUnknown_08486EF8:: @ 8486EF8
-	.incbin "baserom.gba", 0x486ef8, 0x4
+@ replacing .incbin "baserom.gba", 0x00486ef8, 0x4
+.4byte 0x00000000
diff --git a/data/fldeff_cut.s b/data/fldeff_cut.s
index 96bdcede4a..c267b7b63e 100644
--- a/data/fldeff_cut.s
+++ b/data/fldeff_cut.s
@@ -8,7 +8,10 @@ gUnknown_0857C608:: @ 857C608
 	.incbin "baserom.gba", 0x57c608, 0x2
 
 gUnknown_0857C60A:: @ 857C60A
-	.incbin "baserom.gba", 0x57c60a, 0x5a
+@ replacing .incbin "baserom.gba", 0x0057c60a, 0x5a
+.byte 0x01, 0x00, 0xff, 0xfe, 0x01, 0x00, 0x00, 0xfe, 0x02, 0x00, 0x01, 0xfe, 0x03, 0x00, 0x02, 0xfe, 0x03, 0x00, 0xfe, 0xff, 0x01, 0x00, 0x02, 0xff, 0x03, 0x00, 0xfe, 0x00, 0x04, 0x00, 0x02, 0x00
+.byte 0x06, 0x00, 0xfe, 0x01, 0x07, 0x00, 0x02, 0x01, 0x09, 0x00, 0xfe, 0x02, 0x07, 0x00, 0xff, 0x02, 0x07, 0x00, 0x00, 0x02, 0x08, 0x00, 0x01, 0x02, 0x09, 0x00, 0x02, 0x02, 0x09, 0x00, 0x00, 0x00
+.byte 0x00, 0x00, 0x01, 0x14, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x00, 0xfe, 0xff, 0x00, 0x00, 0x50, 0xc6, 0x57, 0x08, 0x58, 0x6e, 0x4f, 0x08, 0x20, 0x00, 0x00, 0x00
 
 	.align 2
 gFieldEffectObjectPaletteInfo6:: @ 857C664