diff --git a/src/mame/drivers/stfight.c b/src/mame/drivers/stfight.c
index 9ce3cd895b9..9d8ae41cf31 100644
--- a/src/mame/drivers/stfight.c
+++ b/src/mame/drivers/stfight.c
@@ -220,6 +220,8 @@ conventional RAM. See the memory map for sprite data format.
 TODO:
 - MCU is identical between Empire City and Cross Shooter, I guess it's coinage
   related.
+- Cross Shooter has serious issues with firing rate, especially noticeable
+  when some bosses appears. irq related?
 - palette is incorporated - fix!!!
 - handle transparency in text layer properly (how?)
 - second bank of sf02 is this used? (probably NOT)
@@ -574,6 +576,9 @@ static MACHINE_CONFIG_DERIVED( cshooter, stfight )
 	MCFG_CPU_ADD("mcu", M68705, 3000000)   /* 3 MHz */
 	MCFG_CPU_PROGRAM_MAP(cshooter_mcu_map)
 
+	MCFG_SCREEN_MODIFY("screen")
+	MCFG_SCREEN_UPDATE_DRIVER(stfight_state, screen_update_cshooter)
+
 	MCFG_GFXDECODE(cshooter)
 	MCFG_VIDEO_START_OVERRIDE(stfight_state,cshooter)
 MACHINE_CONFIG_END
@@ -985,8 +990,8 @@ ROM_START( cshooter )
 
 	ROM_REGION( 0x820, "proms", 0 )
 	ROM_LOAD( "63s281.16a", 0x0000, 0x0100, CRC(0b8b914b) SHA1(8cf4910b846de79661cc187887171ed8ebfd6719) ) // clut
-	ROM_LOAD( "82s129.9s",  0x0100, 0x0100, CRC(cf14ba30) SHA1(3284b6809075756b3c8e07d9705fc7eacb7556f1) ) // timing? (not used)
-	ROM_LOAD( "82s129.4e",  0x0200, 0x0100, CRC(0eaf5158) SHA1(bafd4108708f66cd7b280e47152b108f3e254fc9) ) // timing? (not used)
+	ROM_LOAD( "82s129.9s",  0x0500, 0x0100, CRC(cf14ba30) SHA1(3284b6809075756b3c8e07d9705fc7eacb7556f1) ) // timing? (not used)
+	ROM_LOAD( "82s129.4e",  0x0600, 0x0100, CRC(0eaf5158) SHA1(bafd4108708f66cd7b280e47152b108f3e254fc9) ) // timing? (not used)
 	ROM_LOAD( "82s123.7a",  0x0800, 0x0020, CRC(93e2d292) SHA1(af8edd0cfe85f28ede9604cfaf4516d54e5277c9) ) // sprite color related? (not used)
 ROM_END
 
diff --git a/src/mame/includes/stfight.h b/src/mame/includes/stfight.h
index af9f07540e8..29baf2e1a01 100644
--- a/src/mame/includes/stfight.h
+++ b/src/mame/includes/stfight.h
@@ -66,10 +66,12 @@ public:
 	virtual void machine_reset();
 	virtual void palette_init();
 	UINT32 screen_update_stfight(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
+	UINT32 screen_update_cshooter(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
 	INTERRUPT_GEN_MEMBER(stfight_vb_interrupt);
 	DECLARE_WRITE8_MEMBER(stfight_adpcm_control_w);
 	void set_pens();
 	void draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect);
+	void cshooter_draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect);
 	DECLARE_WRITE_LINE_MEMBER(stfight_adpcm_int);
 
 	/*
diff --git a/src/mame/video/stfight.c b/src/mame/video/stfight.c
index de56d21227a..08fd12d945e 100644
--- a/src/mame/video/stfight.c
+++ b/src/mame/video/stfight.c
@@ -335,3 +335,48 @@ UINT32 stfight_state::screen_update_stfight(screen_device &screen, bitmap_ind16
 	m_tx_tilemap->draw(bitmap, cliprect, 0,0);
 	return 0;
 }
+
+void stfight_state::cshooter_draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect)
+{
+	for (int i = m_sprite_ram.bytes() - 4; i >= 0 ; i -= 4)
+	{
+		if (m_sprite_ram[i+1]&0x80)
+			continue;
+
+		int attr = m_sprite_ram[i+1];
+		int flipx = attr & 0x10;
+		int color = attr & 0x0f;
+		int pri = (attr & 0x20) >> 5;
+
+		/* BCD debug code, to be removed in the end */
+		UINT8 tile_low = (m_sprite_ram[i]&0x0f);
+		UINT8 tile_high = ((m_sprite_ram[i]&0xf0)>>4);
+
+		tile_low += (tile_low > 0x9) ? 0x37 : 0x30;
+		tile_high += (tile_high > 0x9) ? 0x37 : 0x30;
+
+		pdrawgfx_transpen(bitmap,cliprect,machine().gfx[0], tile_high << 1, color, flipx, 0, m_sprite_ram[i+3],m_sprite_ram[i+2],machine().priority_bitmap,pri ? 0x02 : 0,0x00);
+		pdrawgfx_transpen(bitmap,cliprect,machine().gfx[0], tile_high << 1, color, flipx, 0, m_sprite_ram[i+3]+8,m_sprite_ram[i+2],machine().priority_bitmap,pri ? 0x02 : 0,0x00);
+		pdrawgfx_transpen(bitmap,cliprect,machine().gfx[0], tile_low << 1, color, flipx, 0, m_sprite_ram[i+3]+8,m_sprite_ram[i+2]+8,machine().priority_bitmap,pri ? 0x02 : 0,0x00);
+		pdrawgfx_transpen(bitmap,cliprect,machine().gfx[0], tile_low << 1, color, flipx, 0, m_sprite_ram[i+3],m_sprite_ram[i+2]+8,machine().priority_bitmap,pri ? 0x02 : 0,0x00);
+	}
+}
+
+UINT32 stfight_state::screen_update_cshooter(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
+{
+	set_pens();
+
+	machine().priority_bitmap.fill(0, cliprect);
+
+	bitmap.fill(0, cliprect);   /* in case m_bg_tilemap is disabled */
+	m_bg_tilemap->draw(bitmap, cliprect, 0,0);
+	m_fg_tilemap->draw(bitmap, cliprect, 0,1);
+
+	/* Draw sprites (may be obscured by foreground layer) */
+//	if (m_vh_latch_ram[0x07] & 0x40)
+		cshooter_draw_sprites(bitmap,cliprect);
+
+	m_tx_tilemap->draw(bitmap, cliprect, 0,0);
+	return 0;
+}
+