diff --git a/src/mame/video/decbac06.c b/src/mame/video/decbac06.c
index cf8c402c325..99fb75e648c 100644
--- a/src/mame/video/decbac06.c
+++ b/src/mame/video/decbac06.c
@@ -171,6 +171,14 @@ void deco_bac06_device::device_start()
 	m_bppmult = 0x10;
 	m_bppmask = 0x0f;
 	m_rambank = 0;
+
+	save_pointer(NAME(pf_data), 0x4000/2);
+	save_pointer(NAME(pf_rowscroll), 0x2000/2);
+	save_pointer(NAME(pf_colscroll), 0x2000/2);
+	save_pointer(NAME(pf_control_0), 8);
+	save_pointer(NAME(pf_control_1), 8);
+
+	save_item(NAME(m_rambank));
 }
 
 void deco_bac06_device::device_reset()
diff --git a/src/mame/video/decbac06.h b/src/mame/video/decbac06.h
index 5bedc95b71a..727e0628a01 100644
--- a/src/mame/video/decbac06.h
+++ b/src/mame/video/decbac06.h
@@ -24,7 +24,22 @@ public:
 	void deco_bac06_pf_draw(running_machine &machine,bitmap_ind16 &bitmap,const rectangle &cliprect,int flags,UINT16 penmask, UINT16 pencondition,UINT16 colprimask, UINT16 colpricondition);
 	void deco_bac06_pf_draw_bootleg(running_machine &machine,bitmap_ind16 &bitmap,const rectangle &cliprect,int flags, int mode, int type);
 
+
+	/* I wonder if pf_control_0 is really registers, or a selection of pins.
+
+	  For games with multiple chips typically the flip bit only gets set on one of the chips, but
+	  is expected to apply to both (and often the sprites as well?)
+	  
+	  Furthermore we have the m_rambank thing used by Stadium Hero which appears to be used to
+	  control the upper address line on some external RAM even if it gets written to the control_0
+	  area
+
+	  For now we have this get_flip_state function so that drivers can query the bit and set other
+	  flip flags accordingly
+	*/
 	UINT8 get_flip_state(void) { return pf_control_0[0]&0x80; };
+
+
 	void set_colmask(int data) { m_gfxcolmask = data; }
 	void set_bppmultmask( int mult, int mask ) { m_bppmult = mult; m_bppmask = mask; } // stadium hero has 3bpp tiles
 	UINT8 m_gfxcolmask;