Thank you very much for your feedback :-) The goal is to capture the black antimatter particles to uncover the coloured diamonds which will unlock the portals. The red cubes are to control the diamonds, so if you shoot all the red cubes, the diamonds will fall down straight without being rebounded. The blue boxes instead are just to make it easier to learn how to control the automatic cursor, especially if you are playing on mobile with activated motion sensors that will allow you to turn the camera by moving your body like in Virtual Reality.