I don't know if anyone has ever brought this up, but the Slippery When Wet outtake commonly called Game of The Heart is actually Cave of the Heart, as shown by this songwriting credit:

http://songwritershalloffame.org/ind...led/C6013/P20/

The lyrics make more sense with this title, but I think it's sort of a weird title, and it should have been written as Game of the Heart (with whatever lyric changes would have been required).


Edit: It could be an error considering Diamond Ring is listed as Diamond Rug, but I don't think so.