Pretty decent! I couldn't finish tbh. I actually didn't know where to go after the first big stone golem thing. I ran past the falling rock, then into the small tunnel, but I couldn't jump across the gap (probably a skill issue). I tried and failed a few times so then ended my run there. Player character has a nice bouncy feel. Btw nice front layer tiling for the grass!
From what I did play, I do have a couple of suggestions:
1. Try and make your art consistent - so don't scale up a small sprite (like the trees in the back) - try to just draw a bigger tree. It doesn't take much more time but it'll make everything look consistent.
2. You could add a simple starry background instead of a plain blue background. Makes the world more real.
3. I would have personally liked to see a "beginning" - even a simple one. So before the game starts, one screen with just the introduction to the story. That bit is pretty important so that I have the initial motivation to play.
Otherwise like I said not a bad effort, and I wish you all the best!
Edit: also, awesome music.
Edit 2: how could I forget! I definitely disagree with the control scheme. Space I think should be the jump, cause gamers by now are so used to it, you're just fighting their natural instinct to press space. I suggest moving the knife throw to right mouse, that way your right hand is the attack thing and your left hand is movement.