diff --git a/src/test/kc/complex/lazynes/balloon.c b/src/test/kc/complex/lazynes/balloon.c
index 901ac1f23..c45ef9b80 100644
--- a/src/test/kc/complex/lazynes/balloon.c
+++ b/src/test/kc/complex/lazynes/balloon.c
@@ -7,6 +7,7 @@
 // Original Source VBCC alpha 2 http://www.ibaug.de/vbcc/vbcc6502_2.zip
 
 #pragma target(nes)
+#pragma emulator("java -jar c:/c64/Nintaco/Nintaco.jar")
 #include "lazynes.h"
 
 int lnMain() {
diff --git a/src/test/kc/complex/lazynes/lazynes.c b/src/test/kc/complex/lazynes/lazynes.c
index ecc0acfbd..5ac8ad615 100644
--- a/src/test/kc/complex/lazynes/lazynes.c
+++ b/src/test/kc/complex/lazynes/lazynes.c
@@ -205,12 +205,11 @@ void lnListTransfer() {
                 char addrLo = vram_update_list[idx++];
                 char* ppuAddr = (char*)(uword){ addrHi&0x3f, addrLo };
                 char size = vram_update_list[idx++];
-                // Set vertical mode ibit in PPUCTRL
-                char ppuCtrl = PPU->PPUCTRL;
-                PPU->PPUCTRL = ppuCtrl|4;
+                // Set vertical mode bit in PPUCTRL
+                PPU->PPUCTRL = 0b10001100;
                 ppuDataTransfer(ppuAddr, vram_update_list+idx, size);
                 // restore PPUCTRL
-                PPU->PPUCTRL = ppuCtrl;
+                PPU->PPUCTRL = 0b10001000;
                 idx += size;
             } else {
                 // The write is single-byte
diff --git a/src/test/kc/complex/lazynes/list.c b/src/test/kc/complex/lazynes/list.c
index 8aef725a4..bb1c10299 100644
--- a/src/test/kc/complex/lazynes/list.c
+++ b/src/test/kc/complex/lazynes/list.c
@@ -9,31 +9,31 @@
 #pragma emulator("java -jar c:/c64/Nintaco/Nintaco.jar")
 #include "lazynes.h"
 
-// Data (in PRG ROM)
 #pragma data_seg(GameRam)
-static ubyte list[64];
+ubyte list[64];
 #pragma data_seg(Data)
 
 void lnMain() {
-	uword offset1 = lnNameTab0+64; 
-	uword offset2 = lnNameTab0+96; 
-	uword offset3 = lnNameTab0+128; 
-	list[0]=(ubyte)(offset1>>8)|lfHor;     // PPU address hi
-    list[1]=(ubyte)offset1;            // PPU address lo
-    list[2]=3;                     // Size
-    list[3] = 'R';                 // Data
-    list[4] = 'X';                 // Data
-    list[5] = '0';                 // Data
-	list[6]=(ubyte)(offset2>>8);     // PPU address hi
-    list[7]=(ubyte)offset2;            // PPU address lo
-    list[8]='X';                     // Size
-	list[9]=(ubyte)(offset3>>8)|lfHor;     // PPU address hi
+    // Set-up an update list in the lnList() format
+	uword offset1 = lnNameTab0+96+4; 
+	uword offset2 = lnNameTab0+96+2; 
+	uword offset3 = lnNameTab0+160+2; 
+	list[0]=(ubyte)(offset1>>8)|lfHor;  // PPU address hi - horizontal
+    list[1]=(ubyte)offset1;            	// PPU address lo
+    list[2]=3;                     		// Size
+    list[3] = 'R';                 		// Data
+    list[4] = 'X';                 		// Data
+    list[5] = '0';                 		// Data
+	list[6]=(ubyte)(offset2>>8);     	// PPU address hi - single
+    list[7]=(ubyte)offset2;            	// PPU address lo
+    list[8]='X';                     	// Size
+	list[9]=(ubyte)(offset3>>8)|lfVer;  // PPU address hi - vertical
     list[10]=(ubyte)offset3;            // PPU address lo
-    list[11]=3;                     // Size
-    list[12] = 'R';                 // Data
-    list[13] = 'X';                 // Data
-    list[14] = '0';                 // Data
-    list[15] = lfEnd;               // End transfer
+    list[11]=3;                     	// Size
+    list[12] = 'R';                 	// Data
+    list[13] = 'X';                 	// Data
+    list[14] = '0';                 	// Data
+    list[15] = lfEnd;               	// End transfer
 
 	static const ubyte bgColors[]={45,33,2};
 	static const char text[]="HELLO LAZYNES!";
@@ -43,11 +43,12 @@ void lnMain() {
 	lnPush(lnNameTab0+32,14,text); // draw text in 2nd line
 
 	for (;;) {
+		// Update the list with dynamic values
 		list[5] = ((list[5]+1)&7)+'0';
 		list[8] = ((list[8]+1)&7)+'0';
 		list[14] = ((list[14]+1)&7)+'0';
-		lnList(list);
-		lnSync(0); // sync with vblank, activate SPR0HIT splitscreen
+		lnList(list); // Send the list
+		lnSync(0); // sync with vblank
 	}
 
 }