The Megabot is a combination of references to giant robots like Voltron or a Jaeger. The name itself might come from a combination of "Megazord" and "Autobot".
Created by Young, the Megabot is the perfect anti-Kaiju card. With 3 power, it is more than capable of attacking villages, but its true strength lies in defending villages due to its bonus +1 power.
The Megabot will always defeat the Kaiju, provided that they both fight each other without bonuses from other cards taking effect.
The Megabot can be used to create a village much quicker than with other cards. As it counts as two cards, you only need one other yellow card in order to make a complete village. However, he cannot be added to an Inn for the same reason.