I understood the main idea of the controls, and that’s how I was actually playing. But when other objects appear on the stage - balls, platforms - the cocoon often crashes into them while flying from below. After these collisions, strange things happened. Sometimes the cocoon stuck tightly to a ball if the ball was smaller in size (I mean the mechanic of the cocoon growing larger), or it bounced off in a completely chaotic trajectory, with no way to control it. Although, maybe it was because I was using Firefox - as I understood, there were some issues with that browser.