Mystic Chaos is a holosseum stage in Custom Robo Arena. It is shaped like a circle and has four evenly-spaced columns. This arena is where the final boss fight with Hadron is fought.
The four columns found within this stage can't be cleared with a single jump and to get on top one must have a robo with the continous jump attribute such as an Aerial Beauty.
The only way to get on top with only a single jump is to use the High Jump Legs.