Mush, giant bird dude, mush! *smack*smack*smack*
I assume this is just an early pass at your boss fight and a demo of your controls. If not, then I definitely missed something.
It was obviously broken, but I actually was amused at just standing on the bird-dude's shoulder and smacking him in the face to make him fly.
It's a long way to go to a game, but the controls felt pretty good (though maybe the attack is a little slow?). I also like the look of the background and the concepts for the characters.