Whats minimum for a robot to enter a competition?

[seahawk]

I know there’s a maximum size for vex robotics in order to properly compete in competitions. But is there a minimum size?

Is it a must to have a cortex? Or can a team simply show up with a shaft collar attached to a license plate and call it their robot?

[seahawk]

Never mind I figured it out:

Subsystem 1: Mobile robotic base including wheels, tracks, legs, or any other mechanism that allows the
robot to navigate the majority of the flat playing field surface. For a stationary robot, the robotic base without
wheels would be considered Subsystem 1.
Subsystem 2: Power and control system that includes a VEX legal battery, a VEX control system, and
associated motors for the mobile robotic base.