Examples are disclosed that relate to adjusting sensitivity of a control stick. In one example, a method comprises: receiving a dead zone inflection point defining a boundary of a dead zone region and a playspace region within a normalized two-dimensional movement space, receiving a sensitivity inflection point within the playspace region of the normalized two-dimensional movement space, transforming the sensitivity inflection point to a transformed sensitivity inflection point using a sensitivity scaling function that comprises the dead zone inflection point, receiving position data representing a current position of the control stick, and transforming the current position to a transformed position using a mapping function comprising the dead zone inflection point and the transformed sensitivity inflection point.