A Magnum Loader's most prominent feature is the single, large wheel that comprises its lower body and provides its only means of movement. It is almost entirely black and is covered in red computer circuitry. Its head is long, sleek, and oval-shaped, and sports a jagged, red antenna on its top. Each of its short arms lead into grey, cylindrical hands tipped with conical, red spikes. Its glowing, yellow eyes are just barely visible in the front of its head. Its Heartless emblem is on its chest. During the Light Cycle games, several Magnum Loaders appear with circuitry that is a different color than the standard red, including gold, green, blue, and silver.