diff --git a/gr-sim/tfv/tfv_items.h b/gr-sim/tfv/tfv_items.h
index 51a3c27f..555449ec 100644
--- a/gr-sim/tfv/tfv_items.h
+++ b/gr-sim/tfv/tfv_items.h
@@ -20,6 +20,7 @@
 		// Other possibilities
 #define ITEM_CHEX_MIX		0x01	// oscar
 #define ITEM_CLASS_RING		0x02	//
+#define ITEM_VORTEXCANNON	0x04	//
 
 extern char item_names[2][8][15];
 
diff --git a/split_screen/Makefile b/split_screen/Makefile
index 44c22687..3fade716 100644
--- a/split_screen/Makefile
+++ b/split_screen/Makefile
@@ -5,11 +5,13 @@ TOKENIZE = ../asoft_basic-utils/tokenize_asoft
 
 all:	split.dsk
 
-split.dsk:	BISHOP BISHOP.BAS RAINBOW.BAS RAINBOW
+split.dsk:	BISHOP BISHOP.BAS RAINBOW.BAS RAINBOW KATC.BIN
 	$(DOS33) -y split.dsk BSAVE -a 0x0300 BISHOP
 	$(DOS33) -y split.dsk SAVE A BISHOP.BAS
 	$(DOS33) -y split.dsk SAVE A RAINBOW.BAS
 	$(DOS33) -y split.dsk BSAVE -a 0x0c00 RAINBOW
+#	$(DOS33) -y split.dsk BSAVE -a 0x2000 LENNA.BIN
+	$(DOS33) -y split.dsk BSAVE -a 0x2000 KATC.BIN
 
 BISHOP:	bishop.o
 	ld65 -o BISHOP bishop.o -C ../linker_scripts/apple2_300.inc
@@ -29,5 +31,8 @@ RAINBOW:	rainbow.o
 RAINBOW.BAS:	rainbow.bas
 	$(TOKENIZE) < rainbow.bas > RAINBOW.BAS
 
+KATC.BIN:	kat.bmp
+	../bmp2dhr/b2d kat.bmp hgr dither
+
 clean:	
-	rm -f *~ *.o *.lst BISHOP
+	rm -f *~ *.o *.lst BISHOP RAINBOW
diff --git a/split_screen/kat.bmp b/split_screen/kat.bmp
new file mode 100644
index 00000000..120bfaf1
Binary files /dev/null and b/split_screen/kat.bmp differ
diff --git a/split_screen/kat_before.png b/split_screen/kat_before.png
new file mode 100644
index 00000000..6c0058ae
Binary files /dev/null and b/split_screen/kat_before.png differ
diff --git a/split_screen/split.dsk b/split_screen/split.dsk
index f3986e49..73fd1db3 100644
Binary files a/split_screen/split.dsk and b/split_screen/split.dsk differ