So I've known for a while now that the original Transformers theme song has has many different variations being used in both Cybertron and Animated as well as other media. But I was not aware that variations of songs written for the original movie existed. I was watching a video on YouTube and listening to a familiar song from the movie that has lyrics referencing the Matrix and Unicron but something sounded weird about it and I couldn't figure out what it was. Then something came up that hit me as being obviously wrong. "The evil Unicron" was changed to "The evil Megatron" all mention of Unicron had be removed from the song. Here's the original version of the song with Unicron still in it. YouTube - Transformers Movie Theme 1986 Here's the alternate version. YouTube - Transformers Custom 3 I've listened to both of these several times now and Unicron has defiantly been swapped out for Megatron but why? Where did this variation of the song come from?