VIDEOS:
Who Will Know (Tragedy)
(video from Jonesycat79; ending cut for time restraint)
This version of Godzilla lives in perpetual agony, yet he's tasked to carry on despite the pain; to that end, the song preceding his first use of atomic breath illustrates his tortured point of view.
Example of:
Villain Song
Chaotic Gore Magala
Example of:
Alas, Poor Villain