Wow.
I know the game in question, shockingly enough. I recognize the theme (though I couldn't tell you what part of the game it is), but I certainly don't remember it being this GOOD.
The blend of old-school and orchestra is amazing, and not something I hear often. Huge props for the blend, and for the reconstruction of the melody, it's not really a simple one to piece together unless you really know it well. To make a full 4+ minute song out of it is amazing. Fantastic work!