Amazing but one glaring flaw.
Most attacks move you in a certain direction, enemies can knock you in whatever direction, and jumping isn't the most fluid around the strange terrain. All of this adds up to you falling into a lot of pits. The game isn't tough, in fact, that's probably the only thing that will kill you throughout all of story mode.
The variety of attacks and traveling through interesting environments definitely makes this a great experience. Character select is another great feature. Overall, this is a great game.