The Existence Of The Kaijin Part 2 is the 2nd episode of The Amazing-Word of Gumball: The Kaijin
Gumball, Darwin, Anais and Penny were running from the monster until Darwin bumped into the monster and starts punching him gets no pain. But then the Kaijin hits Darwin, then Darwin flies into the air, hits Gumball and they ran away. Penny was hiding and then found Anais next to her.
As Gumball and Darwin ran for their lives, they found Duncan running for his life too. The two called him twice until he answered. Duncan told the two what was happening to him. Then Duncan set a trap that defeated one of the Kaijjin monster, but not Gigazelle.
He also warned that there are more than 1 monster, and those monsters are hunting down all life on Earth. Gumball and Darwin's new mission has just began. Then the episode ends.
This is the 2nd episode of The Amazing-Word of Gumball: The Kaijin