diff --git a/_asset/ksw/basicTile01.png b/_asset/ksw/basicTile01.png
index 7659821..1eb7e39 100644
Binary files a/_asset/ksw/basicTile01.png and b/_asset/ksw/basicTile01.png differ
diff --git a/_asset/ksw/basicTile01.png.import b/_asset/ksw/basicTile01.png.import
index 1df95e3..a213970 100644
--- a/_asset/ksw/basicTile01.png.import
+++ b/_asset/ksw/basicTile01.png.import
@@ -2,7 +2,7 @@
 
 importer="texture"
 type="CompressedTexture2D"
-uid="uid://bgyuxd84sd4im"
+uid="uid://dd622t4mw5vva"
 path="res://.godot/imported/basicTile01.png-ad20f7bda4b3d3d772ec1022f2bd469c.ctex"
 metadata={
 "vram_texture": false
diff --git a/_asset/ksw/basicTile02.png b/_asset/ksw/basicTile02.png
index a06c4ac..ca86e0e 100644
Binary files a/_asset/ksw/basicTile02.png and b/_asset/ksw/basicTile02.png differ
diff --git a/_asset/ksw/basicTile02.png.import b/_asset/ksw/basicTile02.png.import
index 8d4ed6f..817bed9 100644
--- a/_asset/ksw/basicTile02.png.import
+++ b/_asset/ksw/basicTile02.png.import
@@ -2,7 +2,7 @@
 
 importer="texture"
 type="CompressedTexture2D"
-uid="uid://cfrrun3ai65j8"
+uid="uid://cwet2kw1mngmf"
 path="res://.godot/imported/basicTile02.png-5b96d40d75bf5493c22086c9606c2acf.ctex"
 metadata={
 "vram_texture": false
diff --git a/_asset/ksw/spike.png b/_asset/ksw/spike.png
new file mode 100644
index 0000000..4484866
Binary files /dev/null and b/_asset/ksw/spike.png differ
diff --git a/_asset/ksw/spike01.png.import b/_asset/ksw/spike.png.import
similarity index 74%
rename from _asset/ksw/spike01.png.import
rename to _asset/ksw/spike.png.import
index 46ddc1d..4b599b9 100644
--- a/_asset/ksw/spike01.png.import
+++ b/_asset/ksw/spike.png.import
@@ -2,16 +2,16 @@
 
 importer="texture"
 type="CompressedTexture2D"
-uid="uid://b03bw0tn7rs76"
-path="res://.godot/imported/spike01.png-b5c3f9a9141c110f11e2c2f73bcf17f7.ctex"
+uid="uid://hs7vhn5ecn0v"
+path="res://.godot/imported/spike.png-2ddb568331f47f3ae80c8d1db0cc2be4.ctex"
 metadata={
 "vram_texture": false
 }
 
 [deps]
 
-source_file="res://_asset/ksw/spike01.png"
-dest_files=["res://.godot/imported/spike01.png-b5c3f9a9141c110f11e2c2f73bcf17f7.ctex"]
+source_file="res://_asset/ksw/spike.png"
+dest_files=["res://.godot/imported/spike.png-2ddb568331f47f3ae80c8d1db0cc2be4.ctex"]
 
 [params]
 
diff --git a/_asset/ksw/spike01.png b/_asset/ksw/spike01.png
deleted file mode 100644
index cd8085a..0000000
Binary files a/_asset/ksw/spike01.png and /dev/null differ