Muscles need to be trained, but the intensity of training usually depends on your lifestyle. For some, simple exercises in the morning are enough, while others go to the gym five times a week. In Muscle Runner Rush Race 3D, muscle mass is necessary, otherwise your runner will not pass the existing obstacles, because this requires physical strength. Before you set off to overcome the obstacle, you need to collect dumbbells of the appropriate color. When the scale next to the hero is filled and the runner's appearance has clearly changed, go to your path and push the wall. To move to a new platform and continue collecting dumbbells in Muscle Runner Rush Race 3D.