Merlin is a legendary figure best known as the wizard featured in Arthurian legend. The standard depiction of the character first appears in Geoffrey of Monmouth's Historia Regum Britanniae, written c. 1136, and is based on an amalgamation of previous historical and legendary figures. Geoffrey combined existing stories of Myrddin Wyllt (Merlinus Caledonensis), a North Brythonic prophet and madman with no connection to King Arthur, with tales of the Romano-British war leader Ambrosius Aurelianus to form the composite figure he called Merlin Ambrosius (Welsh: Myrddin Emrys). Geoffrey's rendering of the character was immediately popular, especially in Wales. Later writers expanded the account to produce a fuller image of the wizard. Merlin's traditional biography casts him as a cambion: born of a mortal woman, sired by an incubus, the non-human wellspring from whom he inherits his supernatural powers and abilities. The name of Merlin's mother is not usually stated but is given as Adhan in the oldest version of the Prose Brut. Merlin matures to an ascendant sagehood and engineers the birth of Arthur through magic and intrigue. Later authors have Merlin serve as the king's advisor until he is bewitched and imprisoned by the Lady of the Lake.

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Metal Slug Advance is a run and gun video game for the Game Boy Advance handheld system created by SNK Playmore in 2004, and is canon to the Metal Slug series. It is notable as the only Metal Slug video game not to feature Marco Rossi as a playable character.

Metal Walker, known as Bakusou Senki Metal Walker GB: Kotetsu no Yuujou (爆走戦記 メタルウォーカーGB 鋼鉄の友情, lit. "Roaring Chronicle Metal Walker GB: Steel Friendship") in Japan, is a role-playing video game for the Game Boy Color, developed and published by Capcom. Many critics likened the game to the Pokémon series, but praised the game's unique qualities. In Japan, the game inspired merchandise based on the Metal Walker robots. Metal Walker's battles are unique from other games in the genre due to their billiard-style nature. Players move their Metal Walkers across the battlefield by hitting them into items, walls, or enemy Metal Walkers.

Micro Machines: The Original Scale Miniatures (called either "Micro Machines" or simply "Micros") were a line of toys originally made by Galoob (now part of Hasbro) in the mid-1980s and throughout the 1990s. Galoob licensed the idea behind Micro Machines from Clem Heeden, a toy inventor from Wisconsin. Micro Machines were tiny scale component style "playsets" and vehicles that were slightly larger than N scale. Although Micro Machines were not sold in the United States for some years, newer models are available in the UK, Europe and outlets in the US now also once again sell Micro Machines. Early Micro Machines television commercials were famous for featuring actor John Moschitta, Jr., who was (at the time) listed in the Guinness Book of World Records as the world's fastest talker.