It might be hard to drive your robot without a controller. The VEXnet Joystick allows a human operator to control their robot in real time. Similar to many video game controllers, the VEXnet Joystick features a 2-axis accelerometer, 8 face buttons, as well as 4 "trigger" buttons.
Have a lot of moving parts on your robot? Simply connect the VEX Partner Joystick to the VEXnet Joystick, and allow for two separate operators!