A couple of months ago, I looked through old trailers, prelease gameplay, and the like of the first two games. I have made Beta Releases in Destroy All Humans! and Beta Releases in Destroy All Humans! 2 to list some data that had changed.
However, since I am not capable of searching the files of a game, I am looking for someone able to decrypt the two games' files to find unused content. Any discoveries should be listed here, on a video, or on a website such as The Cutting Room Floor. I also advise using sources if external help is used.
Thank you for your co-operation.
UPDATE - I best advise you use the original PS2 releases of both to find the unused content.