It was a compilation of match video footage set to Wuthering Heights (a Danish metal band.) The lyrics started out “Staring into darkness / something stirs inside,” if that helps. It was about ten minutes long and used to be on YouTube. The video was clearly Japanese in origin, and was very poorly tagged / identified. As a longtime JBA player, I can also say that it was one of the most masterful videos I have ever seen. And I miss it.