‘Battlesong’ is the climax of Deltron 3030 , which details Deltron Zero’s rap battles. Sanctioned by the Galactic Embassy, the first battle takes places on the planet Mercury; the second is on Pluto, where Deltron Zero battles a ‘shadow;’ and lastly, Deltron Zero battles a challenger named Qusar, when he arrives on Sicilia, an ‘Earth colony.’