For ULTRAMAN, who believes in the free will and potential of human, he is the strongest rival as he tries to bring out their negative aspects and bring them under his control. 

Unlike other aliens who plan to conquer the earth with Kaiju, the MEFILAS are cunning aliens who use their intelligence to negotiate with mankind to surrender the earth themselves. 

【MEFILAS famous scene video】 MEFILAS:My name is MEFILAS. MEFILAS:When in Rome, do as the Romans do. That's my favorite word. MEFILAS:Entrusting this planet to me is the best choice. ULTRAMAN:I will use my abilities to stop them. #ShinUltraman