After the success of the Guren, the Kyoto House commissions a mass production version, which would be known as the Gekka. Before the production model is created, genius engineer Rakshata Chawla constructs a prototype version in order to test the viability of the design. This unit only appears in the game Code Geass: Lelouch of the Rebellion - Lost Colors, piloted by the protagonist Rai if the player chooses to join the Order of the Black Knights.