This is a great implementation of this type of concept! You pick it up really quickly! You really need sound effects to be able to better tell when you're getting shot. But even without sound effects and music, it was still one of the most fun games I've played from this game jam!
I couldn't seem to be able to mindcontrol the black ship - I think being able to control any ship is important. Also WASD movement and mouse aim would be great.
With a couple of improvement, I could really see myself playing for like half an hour at a time. Really well done!