This is real car crash stuff. There's no need to sit about pontificating for an hour, al the guy needs to do is play the game. People in the scene will know within 10 minutes if he is capable of the scores he claimed. We've all lied about scores or beating certain games when we were kids, this entire player base got caught in it's own lies. Bullshitting each other in the name of one-upmanship, it's pathetic.
This man did not go to the lengths he went to to hide the fact he was playing on MAME without going any further. He cheated. Save states or whatever, he cheated. Plain and simple.