diff --git a/src/mame/machine/seibucop/seibucop.cpp b/src/mame/machine/seibucop/seibucop.cpp
index 61ea9ce7198..b4adcb40348 100644
--- a/src/mame/machine/seibucop/seibucop.cpp
+++ b/src/mame/machine/seibucop/seibucop.cpp
@@ -30,13 +30,19 @@
  - (fixed) player walks on spot on stage clear;
  - several enemies seems to not like a missing min/max range limit for a specific operation? 
    (when i.e. first boss goes to bottom of the screen and become unreachable)
+ - (btanb) Throw is made by quickly double jumping (!)    
  heated barrel
  - gives random value to hi-score if you continue (only the first time, not a bug?);
  - (fixed?) throws random address exceptions at level 3 and above, a RAM address arrives corrupt in the snippet at 0x136a;
  - (fixed?) some corrupt sprites, probably a non-fatal version of the one above;
  - stage 2 boss attacks only in vertical (regressed with the 130e / 3b30 / 42c2 command merge);
  - (fixed) level 3+ boss movements looks wrong;
- - missiles doesn't seem to like our 6200 hookup here;
+ - stage 3 "homing" missiles doesn't seem to like our 6200 hookup here, except it's NOT 6200!?
+ sd gundam
+ - stage 3 mid-boss still has the sprite garbage bug;
+ - stage 4: has sprite stuck on bottom-left of screen;
+ - palette dims too much on attract / continue screen. 
+   It's known that the DMA data arrangement gives same results on a real Legionnaire board, so shrug
  
  
   Tech notes:
@@ -331,7 +337,7 @@ WRITE16_MEMBER(raiden2cop_device::cop_pgm_data_w)
 				logerror("addmem16 (r%x)\n", reg);
 			break;
 		default:
-			logerror("?\n");
+			logerror("? %x(r%x)\n",off,reg);
 			break;
 		}
 	}
diff --git a/src/mame/machine/seibucop/seibucop.h b/src/mame/machine/seibucop/seibucop.h
index d44df886eb9..87ef1a69fc2 100644
--- a/src/mame/machine/seibucop/seibucop.h
+++ b/src/mame/machine/seibucop/seibucop.h
@@ -13,20 +13,17 @@
 #define LOG_Commands 	0
 #define LOG_Phytagoras 	0
 #define LOG_Division  	0
+#define LOG_Move0205    0
+#define LOG_Move0905    0
 
 #define MCFG_RAIDEN2COP_VIDEORAM_OUT_CB(_devcb) \
 	devcb = &raiden2cop_device::set_m_videoramout_cb(*device, DEVCB_##_devcb);
 
-#define MCFG_CPU_IS_68K(value) \
-	raiden2cop_device::set_cpu_is_68k(*device, value);
-
 #define MCFG_RAIDEN2COP_ADD(_tag ) \
-	MCFG_DEVICE_ADD(_tag, RAIDEN2COP, 0) \
-	MCFG_CPU_IS_68K(0)
+	MCFG_DEVICE_ADD(_tag, RAIDEN2COP, 0)
 
 #define MCFG_LEGIONNACOP_ADD(_tag ) \
-	MCFG_DEVICE_ADD(_tag, RAIDEN2COP, 0) \
-	MCFG_CPU_IS_68K(1)
+	MCFG_DEVICE_ADD(_tag, RAIDEN2COP, 0)
 
 
 class raiden2cop_device : public device_t
diff --git a/src/mame/machine/seibucop/seibucop_cmd.hxx b/src/mame/machine/seibucop/seibucop_cmd.hxx
index 6987c86b5a9..19f6f2a4ad8 100644
--- a/src/mame/machine/seibucop/seibucop_cmd.hxx
+++ b/src/mame/machine/seibucop/seibucop_cmd.hxx
@@ -20,10 +20,13 @@
 00 - 0105 ( 00) (  105) :  (180, 2e0, 0a0, 000, 000, 000, 000, 000)  6     fffb   (zeroteamsr)
 */
 void raiden2cop_device::execute_0205(int offset, UINT16 data)
-{
+{	
 	int ppos =        m_host_space->read_dword(cop_regs[0] + 0x04 + offset * 4);
 	int npos = ppos + m_host_space->read_dword(cop_regs[0] + 0x10 + offset * 4);
 	int delta = (npos >> 16) - (ppos >> 16);
+#if LOG_Move0205
+	// ...
+#endif
 	m_host_space->write_dword(cop_regs[0] + 4 + offset * 4, npos);
 	cop_write_word(cop_regs[0] + 0x1e + offset * 4, cop_read_word(cop_regs[0] + 0x1e + offset * 4) + delta);
 }
@@ -38,6 +41,10 @@ void raiden2cop_device::execute_0205(int offset, UINT16 data)
 
 void raiden2cop_device::execute_0904(int offset, UINT16 data)
 {
+#if LOG_Move0905
+	printf("cmd %04x: %08x %08x [%08x]\n",data, m_host_space->read_dword(cop_regs[0] + 16 + offset * 4),m_host_space->read_dword(cop_regs[0] + 0x28 + offset * 4),cop_regs[0]);
+#endif
+	
 	if (data&0x0001)
 		m_host_space->write_dword(cop_regs[0] + 16 + offset * 4, m_host_space->read_dword(cop_regs[0] + 16 + offset * 4) + m_host_space->read_dword(cop_regs[0] + 0x28 + offset * 4));
 	else /* X Se Dae and Zero Team uses this variant */
@@ -57,7 +64,7 @@ void raiden2cop_device::execute_0904(int offset, UINT16 data)
 // triggered with 130e, 138e
 void raiden2cop_device::execute_130e(int offset, UINT16 data)
 {
-	// this can't be right
+	// this can't be right, or bits 15-12 from mask have different meaning ...
 	execute_338e(offset, data);
 }
 
@@ -155,7 +162,7 @@ void raiden2cop_device::execute_338e(int offset, UINT16 data)
 	}
 
 #if LOG_Phytagoras
-	printf("cmd %04x: dx = %d dy = %d angle = %02x\n",data,dx,dy,cop_angle);
+	printf("cmd %04x: dx = %d dy = %d angle = %02x %04x\n",data,dx,dy,cop_angle);
 #endif
 
 	if (data & 0x0080) {
@@ -299,7 +306,7 @@ void raiden2cop_device::execute_6200(int offset, UINT16 data)
 	}
 
 	cop_write_word(cop_regs[primary_reg], flags);
-
+	
 	if (!m_host_endian)
 		cop_write_byte(cop_regs[primary_reg] + primary_offset, angle);
 	else // angle is a byte, but grainbow (cave mid-boss) is only happy with write-word, could be more endian weirdness, or it always writes a word?