Such an interesting, entertaining and also tricky submission! I must admit that it was hard indeed, as a matter of fact I got stucked a long time on the second level, but when I learned how to play with black and white holes, I got great feeling of accomplishment. It was not frustrating, but fun all along
I played the windows version as recommended, it was worth it as the particle effects add so much to the game visuals
As a recomendation I would advise to discretize more the radius range of the holes and limit their max size, but is just a minor fix
Congratulations on the good job, and see you again space cowboy :3