S01E26 - En avant camarades !
Synopsis
With the sacrifice of one of their important comrades, the Super Galactic Great Gurren is finally able to transform into the "Super Galactic Great Gurren Lagann". Now they stand a fighting chance against the Anti-Spirals. However the enemy then creates an "Alternate Space Labyrinth", to use their own memories and desires against them but an old friend appears to help.