Sorry I could not upload you a save state XPORT, my girl friend and I are having troubles so I moved in with my parents for a while and do not have my own computer (with Ethernet) set up, and this mobo is dying so it won't accept any of my cards.
Anyhow, for the Metroid bug, you will have to play into Metroid a bit, I'd say make it to the 1st boss you fight in the game which will take you about 10 minutes to get to, then after that you should have no doubt seen the bug. And no it does not show up in PC versions of the emu.
As for DOOM and Duke, I guess you understand what we are talking about now? The other XBOX emus do not have the Graphical bug, but they are slow when playing it.