The game is encoded entirely in discrete electronic components, like Atari's earlier games, and unlike later computer-based arcade games; the graphics are all simple line elements with the exception of the spacecraft, which are generated based on diodes on the circuit board arranged in the shape of half of a ship to represent the shape they create.
The game's components are entirely digital, similar to Atari's earlier games, unlike later computer-based arcade games; the graphics are basic line elements with the exception of the spacecraft, which are generated by diodes on the circuit board arranged in a half-ship shape to represent their form.