Wow! Very impressed! The theme of the jam as well as the game's theme (the elements) were both really well implemented and manifested themselves not only in the gameplay, but also in the art. Great job with the audio and the scene transitions as well! I didn't manage to find any significant bugs except that the enemies have a tendency to get stuck to the wall, which was pretty exploitable. Also, really clever to have the character's design and the menu design match. That was subtle, but nice. Great job! This is my highest rated game yet!
(edit) I forgot to mention that I would highly recommend remapping the rotate keys to Q and E as opposed to Z and X. That was pretty uncomfortable. Still, well done!