On the sixth day of the battle, Dai-Gundo arrived on the battlefield after Cytomander's Dai-Gunten already engaged the humans. It deployed its own Gunman forces to bombard Dai-Gurren from below, forcing the humans' Gunmen to split up. Unfortunately for the Beastmen, one Gunman was all Team Dai-Gurren needed to devastate Cytomander's air force, allowing the rest of the heroes to attack the grounded enemies-even moreso when further human-controlled Gunmen arrived to aid Simon's air battle.
When Dai-Gunten was destroyed, a large chunk of its remains fell on the Dai-Gundo, engulfing it in a massive fireball. However, the grounded flagship was completely unharmed by the impact and proceeded to retreat beneath Teppelin. There, Guame used his Dai-Gun to amplify his own Spiral Power, which, combined with Teppelin, created a massive tornado of energy that began sucking the humans in.
The Gurren Lagann attempted to stop the Dai-Gundo by drilling underneath it and attempting to pierce its underside. At first, this only pushed the fortress mecha up a little, and Guame countered by using the Dai-Gundo's thrusters to smash Gurren Lagann back down. However, doing so stabilized the Gurren Lagann, allowing its drill to pierce Dai-Gundo's armor. With that, Simon and Rossiu were able to reverse Dai-Gundo's spin, violating its union with Teppelin and dissipating its energy storm before lancing it clean through, causing it to explode.
The Dai-Gundo's means of locomotion was later adopted by the humans for the various vehicles they use (cars literally ran on legs, not wheels).
Abilities and Attributes
Dai-Gundo's carapace is extraordinarily resilient, able to take the impact of a falling Dai-Gunten without a scratch. It is propelled by many legs on its underside, and can travel at a decent clip. It is armed with a pair of tower-like cannons, but mainly relies on its hordes of Gunmen to attack enemies. Additionally, it has thrusters around its dome-like upper surface that can apparently push it into the air or back down to the ground, enabling the Dai-Gun to use its impressive bulk as a weapon.
It can also combine its strengths with Teppelin to form a whirling tornado of energy, which destroys anything that touches it and disrupts communications and navigation.
- The "do" in its name can be translated as "earth", referring to it being a land-based unit.
- The crewmen resemble anteaters, fairly fitting for the ship they control, as this one appears land-based.