I just tried the demo for this. Any of you guys who enjoyed NES beat em ups--it would be criminal not to buy this.
What it really is is a reimagining with better art and more stuff of River City Ransom. Most people are saying Golden Axe, another great beat em up, because of the fantasy theme. But I'd say the gameplay feels similar to River City Ransom. At least in the demo your range is short, there are throws, etc. It remains to be seen whether you can jump on people's heads, though.
Anyway, this one is a lot of fun. I highly recommend trying it out. I never want to hear someone talk about the death of the beat em up ever again. Here it is, in the flesh.