Way too easy for me.
It has potential, but the art and gameplay are dull.
needs more work and music, the background needs to be more creepy if its a castle, good luck.
I managed to get stuck in a tile in the level in which you jump in the large chasm with plenty of tiles.
As for improvements, I'd add some ambient music and enhance the graphics in the city, which is quite bad.
Thanks for the feedback. I'm will be adding some music,score, and enemies and of course better graphics.