diff --git a/targets/mega65/configdb.c b/targets/mega65/configdb.c
index 151be8ef..5ce18db6 100644
--- a/targets/mega65/configdb.c
+++ b/targets/mega65/configdb.c
@@ -107,6 +107,8 @@ static const struct xemutools_configdef_switch_st switch_options[] = {
 	{ "noopl3", "Disables OPL3 emulation", &configdb.noopl3 },
 	{ "lockvideostd", "Lock video standard (programs cannot change it)", &configdb.lock_videostd },
 	{ "curskeyjoy", "Cursor keys as joystick [makes your emulator unsable to move cursor in BASIC/etc!]", &hid_joy_on_cursor_keys },
+	{ "showscanlines", "Show scanlines in V200 modes", &configdb.show_scanlines },
+	{ "allowscanlines", "Allow user programs to control scanline visibility", &configdb.allow_scanlines },
 	{ NULL }
 };
 
diff --git a/targets/mega65/configdb.h b/targets/mega65/configdb.h
index a5ec785e..82493584 100644
--- a/targets/mega65/configdb.h
+++ b/targets/mega65/configdb.h
@@ -72,6 +72,8 @@ struct configdb_st {
 	char	*selectedgui;
 	int	lock_videostd;
 	int	videostd;
+	int	show_scanlines;
+	int	allow_scanlines;
 	int	fullborders;
 	int	hdosvirt;
 	int	show_drive_led;
diff --git a/targets/mega65/ui.c b/targets/mega65/ui.c
index 1bd77dd4..198ed5e5 100644
--- a/targets/mega65/ui.c
+++ b/targets/mega65/ui.c
@@ -644,6 +644,13 @@ static void ui_cb_displayenable ( const struct menu_st *m, int *query )
 /**** MENU SYSTEM ****/
 
 
+static const struct menu_st menu_show_scanlines[] = {
+	{ "Disallow change by programs",XEMUGUI_MENUID_CALLABLE | XEMUGUI_MENUFLAG_SEPARATOR |
+					XEMUGUI_MENUFLAG_QUERYBACK,	xemugui_cb_toggle_int_inverted, (void*)&configdb.allow_scanlines },
+	{ "Show scanlines",		XEMUGUI_MENUID_CALLABLE |
+					XEMUGUI_MENUFLAG_QUERYBACK,	xemugui_cb_toggle_int, (void*)&configdb.show_scanlines },
+	{ NULL }
+};
 static const struct menu_st menu_video_standard[] = {
 	{ "Disallow change by programs",XEMUGUI_MENUID_CALLABLE | XEMUGUI_MENUFLAG_SEPARATOR |
 					XEMUGUI_MENUFLAG_QUERYBACK,	ui_cb_video_standard_disallow_change, NULL },
@@ -681,6 +688,7 @@ static const struct menu_st menu_display[] = {
 	{ "Render scale quality",	XEMUGUI_MENUID_SUBMENU,		NULL, menu_render_scale_quality },
 	{ "Window size / fullscreen",	XEMUGUI_MENUID_SUBMENU,		NULL, menu_window_size },
 	{ "Video standard",		XEMUGUI_MENUID_SUBMENU,		NULL, menu_video_standard },
+	{ "Show scanlines at V200",	XEMUGUI_MENUID_SUBMENU,		NULL, menu_show_scanlines },
 	{ "Show full borders",		XEMUGUI_MENUID_CALLABLE |
 					XEMUGUI_MENUFLAG_QUERYBACK,	ui_cb_fullborders, NULL },
 	{ "Show drive LED",		XEMUGUI_MENUID_CALLABLE |
diff --git a/targets/mega65/vic4.c b/targets/mega65/vic4.c
index cce9baa7..1584fe5e 100644
--- a/targets/mega65/vic4.c
+++ b/targets/mega65/vic4.c
@@ -722,6 +722,8 @@ void vic_write_reg ( unsigned int addr, Uint8 data )
 		CASE_VIC_4(0x54):
 			vic_registers[0x54] = data;	// we need this work-around, since reg-write happens _after_ this switch statement, but machine_set_speed above needs it ...
 			machine_set_speed(0);
+			if (configdb.allow_scanlines && !in_hypervisor)	// FIXME: this is "do now allow to alter show-scanline setting by hypervisor"
+				configdb.show_scanlines = !!(data & 32);
 			return;				// since we DID the write, it's OK to return here and not using "break"
 		CASE_VIC_4(0x55): CASE_VIC_4(0x56): CASE_VIC_4(0x57): break;
 		CASE_VIC_4(0x58): CASE_VIC_4(0x59):
@@ -1555,10 +1557,13 @@ int vic4_render_scanline ( void )
 	// FIXME: is this really correct? ie even sprites cannot be set to Y pos finer than V200 or ...
 	// ... having resolution finer than V200 with some "VIC-IV magic"?
 	if (!EFFECTIVE_V400 && (ycounter & 1)) {
-		//for (int i = 0; i < TEXTURE_WIDTH; i++, current_pixel++)
-		//	*current_pixel = /* user_scanlines_setting ? 0 : */ *(current_pixel - TEXTURE_WIDTH);
-		memcpy(current_pixel, current_pixel - TEXTURE_WIDTH, TEXTURE_WIDTH * 4);
-		current_pixel += TEXTURE_WIDTH;
+		if (XEMU_UNLIKELY(configdb.show_scanlines)) {
+			for (int i = 0; i < TEXTURE_WIDTH; i++, current_pixel++)
+				*current_pixel = ((*(current_pixel - TEXTURE_WIDTH) >> 1) & 0x7F7F7F7FU) | black_colour;	// "| black_colour" is used to correct the messed-up alpha channel to $FF
+		} else {
+			memcpy(current_pixel, current_pixel - TEXTURE_WIDTH, TEXTURE_WIDTH * 4);
+			current_pixel += TEXTURE_WIDTH;
+		}
 	} else {
 		// Top and bottom borders
 		if (ycounter < BORDER_Y_TOP || ycounter >= BORDER_Y_BOTTOM || !REG_DISPLAYENABLE) {