Metal Gear Solid 4 beta/debug information?

I'm pulling an allnighter here, playing some MGS4 on the PS3. Playing through this great game makes me wonder about a beta/debug version of this game:

- does it look different compared to the retail version?
- how is the debugmenu structured?
- what does the debugmenu allow you to do in-game?

Playing it the second time through makes me appreciate this title much more, noticing small details!

I know we have some big Metal Gear Fans onboard. Anyone?

 

I found an early video of a beta in 2005 (TGS):

http://www.youtube.com/watch?v=OcWoDVfH5xQ

As you can see the enemies have different weapons than in the retail. Hideo changes effects on the fly. Cool stuff.

If you know of any videos please share them here at assemblers.

 

If i remember well,it's a real time demo from konami no?

 

Yes, it is, kinda cool!

 

Snake's sneaking suit seems a bit different too. Color wise, to me at least. The game also seems less clean, going towards how the first Gears looked. The enemies look a bit different, and the gun's are too. Also, I don't remember that area being in the final release, but I could be wrong.