Hey TheSudz,
Really like the game, has a real Binding of Issac feel ;) Now, one thing I would do is pitch bend the sound of the axe swinging of make some variations on that sound. That way it is less repetitive. Also, game feel is something you should look into, adding a simple animation/sound/effect to enemies dying will really help with that.
Other than those things I really dug it,
Atomic Brainbag