diff --git a/src/mame/drivers/blackt96.cpp b/src/mame/drivers/blackt96.cpp
index b3a07ae66c0..cfabbf3c0f1 100644
--- a/src/mame/drivers/blackt96.cpp
+++ b/src/mame/drivers/blackt96.cpp
@@ -376,7 +376,7 @@ static MACHINE_CONFIG_START( blackt96, blackt96_state )
 	MCFG_SNK68_SPR_GFXDECODE("gfxdecode")
 	MCFG_SNK68_SPR_PALETTE("palette")
 	MCFG_SNK68_SPR_SET_TILE_INDIRECT( blackt96_state, tile_callback )
-
+	MCFG_SNK68_SPR_NO_PARTIAL
 
 	MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")
 
diff --git a/src/mame/video/snk68_spr.cpp b/src/mame/video/snk68_spr.cpp
index fccf9140446..b55e7b18056 100644
--- a/src/mame/video/snk68_spr.cpp
+++ b/src/mame/video/snk68_spr.cpp
@@ -13,7 +13,8 @@ snk68_spr_device::snk68_spr_device(const machine_config &mconfig, const char *ta
 		m_palette(*this),
 		m_spriteram(*this, "^spriteram"),
 		m_screen(*this, "^screen"),
-		m_flipscreen(0)
+		m_flipscreen(0),
+		m_partialupdates(1)
 {
 	m_newtilecb =  snk68_tile_indirection_delegate(FUNC(snk68_spr_device::tile_callback_noindirect), this);
 }	
@@ -51,7 +52,11 @@ void snk68_spr_device::set_tile_indirect_cb(device_t &device,snk68_tile_indirect
 	dev.m_newtilecb = newtilecb;
 }
 
-
+void snk68_spr_device::static_set_no_partial(device_t &device)
+{
+	snk68_spr_device &dev = downcast<snk68_spr_device &>(device);
+	dev.m_partialupdates = 0;
+}
 
 void snk68_spr_device::device_start()
 {
@@ -87,7 +92,7 @@ WRITE16_MEMBER(snk68_spr_device::spriteram_w)
 		int vpos = m_screen->vpos();
 
 		if (vpos > 0)
-			m_screen->update_partial(vpos - 1);
+			if (m_partialupdates) m_screen->update_partial(vpos - 1);
 
 		m_spriteram[offset] = newword;
 	}
diff --git a/src/mame/video/snk68_spr.h b/src/mame/video/snk68_spr.h
index 802ce5b3213..8a0494e0a7b 100644
--- a/src/mame/video/snk68_spr.h
+++ b/src/mame/video/snk68_spr.h
@@ -6,6 +6,9 @@ typedef device_delegate<void (int&, int&, int&, int&)> snk68_tile_indirection_de
 	snk68_spr_device::static_set_palette_tag(*device, "^" _palette_tag);
 #define MCFG_SNK68_SPR_SET_TILE_INDIRECT( _class, _method) \
 	snk68_spr_device::set_tile_indirect_cb(*device, snk68_tile_indirection_delegate(&_class::_method, #_class "::" #_method, NULL, (_class *)0));
+#define MCFG_SNK68_SPR_NO_PARTIAL \
+	snk68_spr_device::static_set_no_partial(*device);
+
 
 class snk68_spr_device : public device_t
 {
@@ -16,6 +19,7 @@ public:
 	static void static_set_gfxdecode_tag(device_t &device, const char *tag);
 	static void static_set_palette_tag(device_t &device, const char *tag);
 	static void set_tile_indirect_cb(device_t &device,snk68_tile_indirection_delegate newtilecb);
+	static void static_set_no_partial(device_t &device);
 
 	DECLARE_READ16_MEMBER(spriteram_r);
 	DECLARE_WRITE16_MEMBER(spriteram_w);
@@ -24,7 +28,7 @@ public:
 
 	snk68_tile_indirection_delegate m_newtilecb;
 	
-	void tile_callback_noindirect(int& tile, int& fx, int& ft, int& region);
+	void tile_callback_noindirect(int& tile, int& fx, int& fy, int& region);
 	void set_flip(int flip);
 
 protected:
@@ -37,6 +41,7 @@ private:
 	required_shared_ptr<UINT16> m_spriteram;
 	required_device<screen_device> m_screen;
 	int m_flipscreen;
+	int m_partialupdates; // the original hardware needs this, the cloned hardware does not.
 };