Each of ECUs constituting a system of a vehicle is registered with authentication IDs of other ECUs. Some embodiments may include a wearable device including a flexible band having an outer surface. An adjacent unselected sense amplifier reads data from memory cells. The location description from at least one of the transmitting device records is added to at least one record associated with the user of the wireless unit. Upon an occurrence of a bonus game triggering event, the gaming system randomly selects one of the maintained bonus game attributes. A mechanism is provided for varying the extreme actuated position of the pedal on the basis of a parameter representing the amount of electric power available for powering the engine.