Dai-Guard: Terrestrial Defense Corp. Season 1 Episode 10 Wages that Correspond to Justice ( Air Date 1999-12-07 ) Genre Action & Adventure, Animation, Comedy, War & Politics, Sci-Fi & Fantasy category. Overview "With Shirota's help, the army has built Kokubogar- a brand new giant robot that they hope will replace Dai-Guard and end the days of civilians saving the world. Determined to prove that their robot is still the best, the Dai-Guard team agree to compete against Kokubogar in a kind of "Giant Robot Challenge".".