Polygon Zone is similar in layout to Battlefield, consisting of a small hard platform with a smaller soft platform above it. It is the smallest stage in the game in terms of floor area.
Both platforms share the same color, which is initially blue and transitions between the spectral colors of the rainbow, from blue to green. The background's hue is always the opposite of the main stage's hue. The hues of the platforms and the background will flip when characters get KO'd.
The main music track is Polygon Zone, a techno remix of a main theme of Super Smash Flash 2.
Not counting removed stages, Polygon Zone is the sixty-fourth stage to be included in SSF2. This may be a reference to the original Super Smash Bros., which was released for the Nintendo 64, as the stage itself references the Fighting Polygon Team from the same game.