A good idea, but too difficult
As a concept and genre, this game is great. The addition of combat to DDR adds a new layer of excitment. Not only is there cool music and lighting fast moves, but also a complete action movie. And the button mashing behind DDR is very similar to that from fighting games, creating the illusion that you may actually be controlling that little knight. I remember being addicted to this type of game on Daxter for PSP.
However, it is way too difficult to play this game. The arrows simply zoom past you before you can even recognize them, much less press the corresponding key within the instant the arrow is in that small circle. While one should be able to rely on the music for timing, the arrows eventually loose their harmony with the beat, leaving the player confused and somewhat abandond. To make matters worse, there is very little indication of the screen relative to the fast paced action that one has made a mistake or missed a key. The game just suddenly ends. This game is fun for the first few seconds, but soon becomes way too difficult to even be considered a "game."