diff --git a/src/devices/video/stvvdp2.cpp b/src/devices/video/stvvdp2.cpp
index ace04646691..44d7b35118b 100644
--- a/src/devices/video/stvvdp2.cpp
+++ b/src/devices/video/stvvdp2.cpp
@@ -2145,6 +2145,34 @@ void saturn_state::stv_vdp2_fill_rotation_parameter_table( uint8_t rot_parameter
 	stv_current_rotation_parameter_table.dkast= (m_vdp2_vram[address/4 + 22] & 0x03ffffc0) | ((m_vdp2_vram[address/4 + 22] & 0x02000000) ? 0xfc000000 : 0x00000000 );
 	stv_current_rotation_parameter_table.dkax = (m_vdp2_vram[address/4 + 23] & 0x03ffffc0) | ((m_vdp2_vram[address/4 + 23] & 0x02000000) ? 0xfc000000 : 0x00000000 );
 
+	// check rotation parameter read control, override if specific bits are disabled 
+	// (Batman Forever The Riddler stage relies on this)
+	switch(rot_parameter)
+	{
+		case 1:
+			if(!STV_VDP2_RAXSTRE)
+				stv_current_rotation_parameter_table.xst = 0;
+
+			if(!STV_VDP2_RAYSTRE)
+				stv_current_rotation_parameter_table.yst = 0;
+			
+			if(!STV_VDP2_RAKASTRE)
+				stv_current_rotation_parameter_table.dkax = 0;
+
+			break;
+		case 2:
+			if(!STV_VDP2_RBXSTRE)
+				stv_current_rotation_parameter_table.xst = 0;
+
+			if(!STV_VDP2_RBYSTRE)
+				stv_current_rotation_parameter_table.yst = 0;
+			
+			if(!STV_VDP2_RBKASTRE)
+				stv_current_rotation_parameter_table.dkax = 0;
+		
+			break;
+	}
+		
 #define RP  stv_current_rotation_parameter_table
 
 	if(LOG_ROZ == 1) logerror( "Rotation parameter table (%d)\n", rot_parameter );
@@ -4778,6 +4806,8 @@ void saturn_state::stv_vdp2_copy_roz_bitmap(bitmap_rgb32 &bitmap,
 		}
 		else
 		{
+			popmessage("%08x",STV_VDP2_RPRCTL);
+			
 			for (hcnt = cliprect.min_x; hcnt <= cliprect.max_x; hcnt++ )
 			{
 				switch( coeff_table_size )