Mech - a.k.a ZSN "Mech" or Zjednoczone Siły Natury "Mech" (meaning - United Forces of Nature "Moss") was originally a classic rock band from Warsaw, Poland. They formed in 1977, released 2 albums and split up in 1986. They reunited in 2005 in an industrial/groove metal sound (like Pantera meets The Prodigy) A selftitled album was released in 2005, but they are best known for soundtrack of the great first-person shooter Painkiller: Heaven's Got A Hitman. Also a game-themed video of the song Painkiller had been shot.