Aside from the lovely new graphics, what separates this 3DS update from the arcade original is that it isn't freaking impossible. Being able to get through a single screen without dying makes a big difference! I'm pretty sure it's a matter of just easier AI enemies, and not a more versatile moveset or anything. Other modes are available in the full game beyond the arcade mode, but I didn't get a chance to play them at the show.

If this were a $5 download, like the 3DS's "3D Classics," I'd be telling you right now that I'm on board without reservation. But I'm pretty sure it isn't -- it had its own space in Arc System Works' TGS booth, for one thing, and it's listed separately on the company's TGS page from its "3DS Download Software." So instead, I'm going to have to think real hard about whether I want to spend actual money on a game that is, mostly, based on an arcade game I hate.

Source: Joystiq