Sonic the Hedgehog Games Model Ripping

[TeridaxXD001]

I've ripped a couple of models from Sonic Chronicles: The Dark Brotherhood, but have a problem: I can't seem to find models of certain characters. In some cases, I can find their textures, but not their models. And in Eggman's case, I found his model, but not his texture.

Finally, my memory of the game is hazy, since it's been years since I've played it, and I'm not sure there are many good guides online, so I'm having trouble identifying enemies and matching their textures.