Besides the obvious Sega CD, 32x, and Virtua Racing incompatibility issues that the Model 3 Genesis has, are there any other games that do not work with it? The reason I ask is that I have a buyer who bought a copy of Golden Axe 2 from me, and is claiming that it is slowing down and having other issues. As someone who has owned or played most of the genesis library, I have never come across the kind of problems he is describing in normal units. Additionally, I remember playing this game and it worked fine on a model 2. Does anyone have any input about this?