Comment by mattwrench

I agree with the sentiment here, but the bigger issue is most games may not have a cool unique new thing that is communicable to listeners. Considering most games take at least a year to create, they usually stumble upon at least a few innovative, but small, ideas. Looking back at a game like Halo, probably the coolest feature was the ability to only hold two weapons at a time, a nowadays popular design choice which radically alters gameplay balance. However if you had told me before release that was the "killer feature", I would have been bored and uninterested.