I enjoyed your game as well, it was a natural fit XD
The enemies are all AI... wasn't nearly enough time to get multiplayer going although that was the thought initially. There is a lot of stuff going on, so probably more room for optimization too.
Thanks again! I also liked yours.I can understand you, I heard adding networking is very hard task, so I think its good that there are ai enemies instead. I do recommed you to look into Object Pooling if you want to optimize your games for a lot of Object spawning and also the gpu instancing which reduces draw calls. I did get like 50 points in your game I think :D