Metal Shield Moblins are a rare type of Moblin encountered in The Legend of Zelda: Skyward Sword. As their name implies, they wield a square Metal Shield in addition to their traditional Moblin Long Spear and wear an metal helmet for extra protection. Unlike Wooden Shield Moblins, a Metal Shield Moblin's Metal Shield cannot be cut and is impervious being destroyed by Bombs, requiring Link to climb over the shield to attack their backside. This type of Moblin is rare, but Link has to face two of them at once on a bridge in the Sky Keep as part of a long battle sequence.
The Shield Moblins in Hyrule Warriors are based on the Metal Shield Moblins from Skyward Sword. Like Metal Shield Moblins, Shield Moblins carry a square Metal Moblin Shield and wear a metal helmet. However unlike Metal Shield Moblins, they are just a vulnerable to Bombs as the game's standard Moblins are, even though shields will remain intact.