diff --git a/src/mame/drivers/konamigx.c b/src/mame/drivers/konamigx.c
index deb36e4bab7..a208be2dd7c 100644
--- a/src/mame/drivers/konamigx.c
+++ b/src/mame/drivers/konamigx.c
@@ -1513,7 +1513,9 @@ static MACHINE_DRIVER_START( gxtype3 )
 	MDRV_PALETTE_LENGTH(16384)
 	MDRV_SCREEN_MODIFY("screen")
 	MDRV_SCREEN_SIZE(128*8, 32*8)
-	MDRV_SCREEN_VISIBLE_AREA(0, 64*8-1, 0, 32*8-1)
+//	MDRV_SCREEN_VISIBLE_AREA(0, 128*8-1, 0, 32*8-1)
+	MDRV_SCREEN_VISIBLE_AREA(0, 576-1, 16, 32*8-1-16)
+
 	MDRV_GFXDECODE(type34)
 MACHINE_DRIVER_END
 
diff --git a/src/mame/video/konamigx.c b/src/mame/video/konamigx.c
index 79e8c80bfe4..9ea4834e993 100644
--- a/src/mame/video/konamigx.c
+++ b/src/mame/video/konamigx.c
@@ -15,6 +15,7 @@ static int gx_tilemode, gx_rozenable, psac_colorbase, last_psac_colorbase;
 static int gx_specialrozenable; // type 1 roz, with voxel height-map, rendered from 2 source tilemaps (which include height data) to temp bitmap for further processing
 static tilemap *gx_psac_tilemap, *gx_psac_tilemap2;
 extern UINT32 *gx_psacram, *gx_subpaletteram32;
+static bitmap_t* type3_roz_temp_bitmap;
 
 /* On Type-1 the K053936 output is rendered to these temporary bitmaps as raw data
    the 'voxel' effect to give the pixels height is a post-process operation on the
@@ -328,8 +329,11 @@ VIDEO_START(konamigx_6bpp)
 
 VIDEO_START(konamigx_type3)
 {
-	K056832_vh_start(machine, "gfx1", K056832_BPP_6, 0, NULL, konamigx_type2_tile_callback, 0);
-	K055673_vh_start(machine, "gfx2", K055673_LAYOUT_GX6, -53, -23, konamigx_type2_sprite_callback);
+	int width = video_screen_get_width(machine->primary_screen);
+	int height = video_screen_get_height(machine->primary_screen);
+
+	K056832_vh_start(machine, "gfx1", K056832_BPP_6, 1, NULL, konamigx_type2_tile_callback, 0);
+	K055673_vh_start(machine, "gfx2", K055673_LAYOUT_GX6, -132, -24, konamigx_type2_sprite_callback);
 
 	_gxcommoninitnosprites(machine);
 
@@ -338,10 +342,19 @@ VIDEO_START(konamigx_type3)
 	gx_specialrozenable = 2;
 
 
+	/* set up tile layers */
+	type3_roz_temp_bitmap = auto_bitmap_alloc(machine, width, height, BITMAP_FORMAT_INDEXED16);
+
+
 	//tilemap_set_flip(gx_psac_tilemap, TILEMAP_FLIPX| TILEMAP_FLIPY);
 
 	K053936_wraparound_enable(0, 1);
 	K053936GP_set_offset(0, 0, 0);
+
+	K056832_set_LayerOffset(0,  -48, 0);
+	K056832_set_LayerOffset(1,  -48, 0);
+	K056832_set_LayerOffset(2,  -48, 0);
+	K056832_set_LayerOffset(3,  -48, 0);
 }
 
 VIDEO_START(konamigx_type4)
@@ -526,10 +539,33 @@ VIDEO_UPDATE(konamigx)
  	// todo: fix so that it works with the mixer without crashing(!)
 	if (gx_specialrozenable == 2)
 	{
-		if ( input_code_pressed(screen->machine, KEYCODE_W) )
+		int xx,yy;
+		int width = video_screen_get_width(screen);
+		int height = video_screen_get_height(screen);
+		const pen_t *paldata = screen->machine->pens;
+
+		//if ( input_code_pressed(screen->machine, KEYCODE_W) )
+		// flicker between game and roz tilemap - warning, may hurt eyes
+		if(video_screen_get_frame_number(screen->machine->primary_screen) & 1)
 		{
-			K053936_0_zoom_draw(bitmap, cliprect,gx_psac_tilemap, 0,0,0); // soccerss playfield
+			K053936_0_zoom_draw(type3_roz_temp_bitmap, cliprect,gx_psac_tilemap, 0,0,0); // soccerss playfield
+
+			// the output size of the roz layer has to be doubled horizontally
+			// so that it aligns with the sprites and normal tilemaps.  This appears
+			// to be done as a post-processing / mixing step effect
+			for (yy=0;yy<height;yy++)
+			{
+				UINT16* src = BITMAP_ADDR16(type3_roz_temp_bitmap,yy,0);
+				UINT32* dst = BITMAP_ADDR32(bitmap,yy,0);
+				int shiftpos = 30;
+				for (xx=0;xx<width;xx+=2)
+				{
+					dst[xx] = paldata[src[(((xx/2)+shiftpos))%width]];
+					dst[xx+1] = paldata[src[(((xx/2)+shiftpos))%width]];
+				}
+			}
 		}
+
 	}