Rolling Bob is a 2D platform game in which you guide and protect a cute robot named Bob, drawing energy lines to trace his path. The game takes place in a utopian society where Ugo, an evil robot, kidnaps the last generation of robots and steals the great nucleus: the only source of life on Bob's planet.

Only Bob can save his companions. To do this, he goes into a dangerous factory in order to save the Bits, the smallest robots in his community. Throughout the dangerous factory, Bob must overcome more than thirty levels distributed in three different worlds: a foundry, an assembly line and a military hangar.