Original Metallica: No Remorse, Ride the Lightning, Creeping Death, Battery, Disposable Heroes, Blackened, ...And Justice for All, Harvester of Sorrow, Holier Than Thou, The Struggle Within. A LOT of others.

Covers: Stone Cold Crazy, So What, Last Caress, Astronomy, Whiskey in the Jar, Mercyful Fate, Killing Time, and so on.

I don't think Metallica has made any BAD songs, except the WHOLE St. Anger Album!