The pair wrote, "We want people to know that we are dismayed and very disappointed in the way a facsimile of Kurt is used in the Guitar Hero game. The name and likeness of Kurt Cobain are the sole property of his estate - we have no control whatsoever in that area. While we were aware of Kurt's image being used with two Nirvana songs, we didn't know players have the ability to unlock the character. This feature allows the character to be used with any kind of song the player wants. We urge Activision to do the right thing in re-locking Kurt's character so that this won't continue in the future.

"It's hard to watch an image of Kurt pantomiming other artists' music alongside cartoon characters. Kurt Cobain wrote songs that hold a lot of meaning to people all over the world. We feel he deserves better." - What about Courtney? Find out here and watch Kurt sing Bon Jovi

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