This concept is goofy and I absolute am here for it. I feel like there's a potential to make a ridiculous Katamari Damacy or Pikmin style game about growing and using your flock to cause chaos. This was fun to mess around with for a while. If you're really looking to expand this project I'd advise looking into using Flocking Behavior/Algorithms for the AI. There's a book by Aversa et al called Unity Artificial Intelligence Programming that has a pretty easy to follow section on implementing and using Flocking in Unity. Cube style is also very cute.