Firstly, congrats on getting your first game done and completing it within a game jam deadline!
There isn't anything revolutionary here but what you have done, you have done pretty well. The gameplay was smooth and bug free, the game goals were clear with easy instructions and I enjoyed the fact that I could 'constrict' enemies like a snake to make them destroy each other which isn't something I see implemented very often.
There is room for further implementation to deepen the gameplay but you can be proud with what you've achieved in a short time.