A Half-Life 2 mod is in the works that will not only swap Alyx Vance for Krystal from Star Fox Adventures, but it will also have all of Alyx’s dialogue replaced by Krystal’s original voice actress, Estelle Ellis.

As reported by Polygon, Gagnetar created this mod four years ago when he replaced Alyx for Krystal, but has now gone a step further by bringing Ellis out of retirement to record brand new lines for the project.

Gagnetar shared a preview of the mod with the voice of Krystal and Ellis in Kleiner’s Lab of Half-Life 2 and it shows how the character created for GameCube’s Star Fox Adventures fits into this new universe.

Image credit: Gagnetar

On a Krystal fan site, Gagnetar said he plans to release the full mod on September 23, 2022, which happens to be the 20th anniversary of Star Fox Adventures. It’s also been confirmed that some of the lines have been rewritten to help Krystal “fit in better” with the world.

As for how he made this possible, he shared in the YouTube comments that he’s been talking to Ellis off and on for years now that he “decided to buy him a decent microphone and we worked from of the”.

Ellis also voiced Queen Earthwalker and Mother Thorntail in Star Fox Adventures and appeared in Perfect Dark Zero and Grabbed by the Ghoulies. 2005’s Perfect Dark Zero was his final dubbing credit.

Star Fox Adventures was released in 2002 and remains a controversial entry in the long-running Star Fox series. In our review of Star Fox Adventures, we said it “arrives as a truly excellent 3D action-adventure for GameCube owners. It’s a clear rip from Zelda, and not quite as good, but it fits in my book because Rare still did a pretty good job.”

If that’s not enough for you, be sure to check out N64’s leaked playable version of Dinosaur Planet, which ended up being reused in Star Fox Adventures.

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Adam Bankhurst is a reporter for IGN. You can follow him on Twitter @AdamBankhurst and on Tic.