Metal Face (Black Face in Japan) is a recurring enemy in the game Xenoblade Chronicles. He is a faced mechon that gets in Shulk and his friends' way numerous times through the story.
Super Smash Bros.
In Super Smash Bros. for Wii U, Metal Face appears as a boss on the stage Gaur Plain once the stage transitions to night. He taunts the players and acts as a hazard for the stage. He can slash at players and step back to destroy a side of the stage. Afterwards, he stands there continuing to taunt and attack. If he isn't defeated, he runs away and dashes across the stage to potentially KO players. Defeating him earns the player a point and causes an explosive chain that goes as he falls down.