The graphics and general polish were excellent. It was nice to see a full story as well, and the atmosphere worked well with everything else. The sound effects were very good and the music was good when it was there. I wished there was music during the body of the game. I liked the spear, it worked well.
The only real complaints are about the enemies, especially the archers. They could hit you from almost anywhere & it was very unfair. There's a screen near the end with 3 archers all near each other that I could only pass by rushing through as quickly as possible, ignoring all enemies.
I also got hit a couple times in other parts by enemies after I had slid past them. It seemed like their attack extended slightly behind them so they hit me even though I seemed to have gotten out of the way.
At the beginning of the area with 3 archers, I jumped up into an archer that I couldn't see yet. There are also many areas where you jump down, but can't see where you will land. It didn't seem like there were any deathtraps, but I would still avoid doing that. One solution would be to zoom out the camera a little, but sometimes the graphics look worse when doing that.
One more thing, I recommend enabling the d-pad for movement on controllers. Either make it an option or just enable it at the same time as the analog stick. A lot of people prefer it & I would have had a lot less fun if I didn't use joytokey to let me use mine.