I liked the music! I agree with the other commenters—the linked health has a lot of potential. I also liked the stone platform sprites.
Little things I think you could fix pretty easily: the connection seems to linger after you kill linked enemies, there's no indicator of the player's health that I could see, it did seem like it wouldn't fire whip properly occasionally (that could have been me), and I think the main player sprite would look more natural if it had arms. I think tweaking the controls to improve handling would help a lot as well.