Some guy took a live performance of Angel of Death and synced it with an 8-bit cover of the song (sounds like a nintendo game).
http://ideaindustries.net/archive/2007/04/30/live-performance-of-angel-of-death-by-slayer-synced-with-8-bit-audio.aspx
http://ideaindustries.net/archive/2007/04/30/live-performance-of-angel-of-death-by-slayer-synced-with-8-bit-audio.aspx