Some characters are present in multiple entries of the series, such as Giygas, Mr. Saturn, and Pokey/Porky. Giygas is the primary antagonist in both "Mother" and "EarthBound". The alien creature's emotional complexity deviates from genre norms. Giygas shows internal conflict in "Mother" and has no appearance but as an "indescribable" force in "EarthBound" final boss battle. In both final battles, Giygas is defeated through love and prayer instead of through a tour de force of weaponry, unlike the endings of other period games. Nadia Oxford wrote for IGN that nearly two decades later, "EarthBound" final fight against Giygas continues to be "one of the most epic video game standoffs of all time" with noted emotional impact. This battle's dialogue was based on Itoi's recollections of a traumatic scene from the Shintoho film "The Military Policeman and the Dismembered Beauty" that he had accidentally seen in his childhood. Oxford wrote for "1UP.com" that Itoi intended to show the alien's yearning for love in "a manner ... beyond human understanding". Despite "EarthBound" and "Mother 3" dissimilar settings, the Mr. Saturn fictional species appear in similar Saturn Valleys in both games. The Mr. Saturn look like an old man's head with feet, a large nose, and bald except for a single hair with a bow. Though they are a technologically advanced and peaceful species with a pureness of heart, they are under constant attacks from encroaching enemies. Nadia and David Oxford of "1UP.com" considered the Mr. Saturn to be aliens despite their human-like and fleshy appearance, as described a piece arguing the central theme of aliens in the "Mother" series. They compared the Mr. Saturn to Kurt Vonnegut's Tralfamadorian alien species. Finally, Pokey begins as Ness's child neighbor who "cowers" and "refuses to fight" in "EarthBound", but grows into a "vicious control freak with no regard for human life", Porky, by the end of the series' "Mother 3".