Cool little puzzler!
I Like the graphics but I missed some animations. Also, the lack of music and/or sound effects leaves a feeling of unfinished job (but I know the jam's deadline can be tight sometimes...)
About the gameplay: The game has a good variety of enemies and the addiction of the stars as a optional collectible adds a welcome extra challenge to your game. I wished the enemies turn movement were a bit more quick and that you had added keyboard support.
Overall, a good game! Good job!