The Lem Gauna Wall was an immense Gauna discovered in the atmosphere and stratosphere of Lem IX. Uncovered by a Heigus Particle Cannon, it stretched across a large portion of Lem IX's atmosphere, blocking the path of the Lem IX recon mission. Enormously large, it stretched across the sky, and was thick enough that the Hayakaze cuirass could not pierce through its Placenta. Once interception was complete, it split into dozens of individual Gauna, giving chase to the Gardes of the recon squad.