Good start, but the platforming in the game is a little too difficult for me. Jumping was too low and there were too many jumps that required almost pixel perfect precision for me to get across. To top it off, once the purple projectile things started showing up, I really had trouble moving forward.
Along with that, I really had trouble stealing the sword from the knights. Finally, I think changing the samey grey background could help out a lot with the game.