C3415 Expedition to the Gray Palace

Sigma technology developed before Pi Galaxy got super technology!

They had always been steadily ahead of Pi Galaxy!

Therefore, Trump and the officials naturally did not dare to underestimate the Sigma people!

Even if the Fawalli had only used 10 billion mechas to occupy Warren Planet!

As for the Green and Celestial Pavilion people, that made Trump and the others even more fearful!

Because,