A method, apparatus, and article of manufacture for modifying the functionality of a legacy gaming device is disclosed. The legacy gaming device can include legacy gaming device processor configured to communicate with various input/output devices, such as a touch screen video display, over legacy communication paths to generate a wager-based game. An apparatus including a processor separate from the legacy gaming device processor can be configured to control an interruption of signals on at least one of the legacy communication paths and to generate substitute signals for the interrupted signals to modify the functionality of the legacy gaming device.