I've finished this game already. It took me a little more than 6 hours to finish. The game was fun, for the first couple of hours. After a while, everything starts to get repetitive.
I was very disappointed with the fact that the only weapon in the game is the sword. I know that the title is called Dragon Sword, but having at least one different weapon in the game would have helped take away the repetitiveness of everything.
After getting further into the game, I started getting the "been there, done that" feeling. Most of the different worlds or "dimension" that you visit are variations of the different locales from the xbox game. I'm not sure how I feel about that, aside from the fact that I don't really like it. Seems like the devs didn't put that much thought into the game.
Another thing about the worlds is that once you finish it, you cannot go back. Couple that with the fact that the stages are too short, Dragon Swords starts to feel like a collection of minigames. The enemies are few, and it seems like fight the same enemies over and over again.
I have always like the original trilogy, and thoroughly enjoyed the xbox game. Having said that, I bought this game with high hopes of it being good, and went away from it feeling very disappointed.
Overall, I'd give the game a 7/10.