diff --git a/data/tilesets/nihon_hightech_attributes.bin b/data/tilesets/nihon_hightech_attributes.bin
index a54a935..1588ab6 100644
Binary files a/data/tilesets/nihon_hightech_attributes.bin and b/data/tilesets/nihon_hightech_attributes.bin differ
diff --git a/data/tilesets/nihon_hightech_collision.asm b/data/tilesets/nihon_hightech_collision.asm
index bb199c7..a05282b 100644
--- a/data/tilesets/nihon_hightech_collision.asm
+++ b/data/tilesets/nihon_hightech_collision.asm
@@ -73,4 +73,16 @@
 	tilecoll WATER, WATER, WALL, WALL ; 48
 	tilecoll WALL, WATER, WALL, WALL ; 49
 	tilecoll WARP_CARPET_LEFT, FLOOR, WARP_CARPET_LEFT, FLOOR ; 4a
-	tilecoll WALL, WALL, WALL, WALL ; 4b
+	tilecoll FLOOR, PIT, PIT, FLOOR ; 4b
+	tilecoll WALL, WALL, WALL, FLOOR ; 4c
+	tilecoll WALL, WALL, FLOOR, FLOOR ; 4d
+	tilecoll WALL, WALL, FLOOR, WALL ; 4e
+	tilecoll WALL, WALL, WALL, WALL ; 4f
+	tilecoll WALL, FLOOR, WALL, FLOOR ; 50
+	tilecoll TALL_GRASS, TALL_GRASS, TALL_GRASS, TALL_GRASS ; 51
+	tilecoll FLOOR, WALL, FLOOR, WALL ; 52
+	tilecoll WALL, WALL, WALL, WALL ; 53
+	tilecoll WALL, FLOOR, WALL, WALL ; 54
+	tilecoll FLOOR, FLOOR, WALL, WALL ; 55
+	tilecoll FLOOR, WALL, WALL, WALL ; 56
+	tilecoll WALL, WALL, WALL, WALL ; 57
diff --git a/data/tilesets/nihon_hightech_metatiles.bin b/data/tilesets/nihon_hightech_metatiles.bin
index 0b472c6..debc632 100644
Binary files a/data/tilesets/nihon_hightech_metatiles.bin and b/data/tilesets/nihon_hightech_metatiles.bin differ
diff --git a/gfx/tilesets/nihon_old.png b/gfx/tilesets/nihon_old.png
index 0806010..9bb983a 100644
Binary files a/gfx/tilesets/nihon_old.png and b/gfx/tilesets/nihon_old.png differ
diff --git a/maps/CoralCity.ablk b/maps/CoralCity.ablk
index 0189bee..6b1c709 100644
--- a/maps/CoralCity.ablk
+++ b/maps/CoralCity.ablk
@@ -1,6 +1,6 @@
 01
 0?999;05J0;47(((ACB6;0?;	
-0
&4!"#&4$   &26(3)*+47((301
+0
&4!"#&4N$   &26(3)*+47((301
 4	
 



41-./,2652@(((D((((67(((((6;?1
 0;?5J0?7((((AIHEFG>
\ No newline at end of file