Although the levels are played in fixed paths, certain rooms can lead to alternate paths (either by finding a hidden item or shining your light to reveal a secret pathway). (wizarddojo.com)
This strategy replaces the old insistence on a fixed path from Earth to moon to Mars with an extensive selection of possible destinations. (scientificamerican.com)
It will be the same motion, but because the weight is set on a fixed path, you don't have to spend extra energy stabilizing yourself. (fitnessandpower.com)