I want to make a fighting game which is similar to the Marvel Vs. Capcom games. I only want to use Marvel characters, and I want to use 3D because it's easier to make than a 2D game. I originally intended to make the game using the 2D engine known as MUGEN. But I dropped that engine because it was too hard to program and no one wanted to help me with it. That's why I need an engine that's easy to program as well.

Does anyone know of a good, simple-to-use 3D game engine which I can use to make fighting games?