The Platypus Baby first appeared in Planet Gurunda Exploration as a spherical egg located in the middle of the desert. Gopal who misunderstood the egg as Power Sphera made the Platypus Monster, the owner of the egg feel angry and chase after Gopal to get his egg back. Then BoBoiBoy rescues Gopal and escapes to hide with the egg. Shortly afterwards, Yaya and Ying arrived to calm the situation. Yaya then tells Gopal to return the egg to its owner before the egg starts to hatch and the child Platypus is so cute that it attracts the attention of Yaya and Ying, especially his mother, Platypus Monster.
Seeing Gopal, Platypus's son called him mama and aroused Platypus Monster's anger. The Baby managed to hug Gopal and then bit Gopal's hand. Gopal screamed in pain until he unconsciously hit the monster so that he let go of his bite. The Mother became angry and chased after Gopal for his actions. Gopal then fled with the Platypus's son while his friends tried to stop the Platypus Monster from attacking and had to fight with him. Arriving at the end of the gorge, Gopal was still struggling with the Baby who still did not release his bite and finally accidentally threw him into the gorge. They were shocked and Gopal allowed himself to jump into the gorge and get the son of the Giant Gurunda and landed on the ground with the help of Yaya. Due to Gopal's courage, the Gurunda Giant forgave him and bit Gopal's hand as a warning sign before he left them.