MMM cartridge + MSX -> ColecoVision's games

My workstation is a Philips NMS 8245 + MFR (slot1) + MMM (slot2) and I've tried both collections of games provided by this thread and MSX Repro Factory. The results of my tests are these:
- Sega : .SMS and some .SG files return this error "memory mapper not supported"; some games don't support the 2nd joystick button;
- Coleco : Repro Factory games start, but some of GDX's collection return some error (I don't remember).
Before I list the items that don't start, the first question is: does my workstation (with the MFR) is ok for the MMM?

What if you put the MMM in slot 1 and the MFR in slot 2?

If that helps, the games should probably detect the MMM slot rather than assuming it is the primary mapper.

The MMM section. I see that you guys are talking about Sega, I had an idea instead of emulating SMS games. Why not do SMS to MSX conversions? MSX to SMS / SG or SG to MSX is easy enough, but I'm really, REALLY interested to see this kind of activity.

I added Cabbage Patch Kids - Adventures in the Park.

The conversion was easier than I thought.

The only difficulty was this:

8052:	ld	a,i
8054:	jp	po,#8059

I had to remove the JP PO for the game to work. I don't know the reason but luckily I remembered seeing this in the Space Invader conversion.