I couldn't tell what to click on to start. I eventually found that the only thing that did anything was clicking on one red block and letting a li'l meter fill up to clear it.

Nothing else did anything, although I did find a few things that said to keep processing blocks to unlock them.

This is a barely functional interface, non-intuitive, and without any promise of any kind of narrative or gameplay payoff.

It gets 2 stars, because it appears to technically function.