The idea/concept of the game is well done quite polished, the first level is quite well done, explaining the core mechanics of the elements.
The walking animation could be done better, there is the small white line in the legs that sometimes shows, (probably an issue with the spritesheet?) and I'm not talking about the dagger by the way. The hitbox of the enemies should be smaller, it should be that you can tell easily that you have touched the enemy, it would nice if you could add some sound effects with bfxr.
But overall, I had fun playing it, thumbs up for developing a fun playable game in 7 days!