Abstract: Disclosed is an adapter for driving control inputs of a video game system, providing a plurality of selectable functional relationships between a set of input signals and the control inputs, and includes an output section for communicating with the system, a receiver for the input signals, and a microprocessor converter for driving the output section in response to the input signals and for changing a functional relationship between the input signals and the output section according to a configuration selector. The configuration selector defines a first function wherein one of the control inputs is responsive to a particular input signal, and a second function wherein a different one of the control inputs is responsive to the input signal. The first and second functions advantageously provide selective transformations between frames of reference of the input signals and the video game itself whereby video games having differing frames of reference can be operated within the same user frame of reference.