Oooh, so hard to choose!
First, since it's my fav game, I'd have to go with the cut levels from Marvel Ultimate Alliance. One would have seen you fighting with Cap on the beaches of
Normandy (later retrieving his body from the Arctic). There were also cut levels in the Negative Zone, a cut Baxter Building base, and a few other areas. Really I just want more of that game. The cut characters, thankfully, have been recreated with mods, but the cut levels, it seems, are lost to us. Some sound files of the Cap Arctic mission are still in the game:
Unused mission dialogue of Hawkeye and Black Widow from Marvel: Ultimate Alliance. It sounds like these were planned for a mission where you rescue Captain A...
www.youtube.com
Second, a more minor one, are the cut weapons from DMC5- a saxophone Nevan-like weapon, ice skates, gymnastics ribbons. I hope they'll appear in a Special Edition. Talked about in this topic:
https://www.resetera.com/threads/dm...n-more-ideas-from-itsuno.79742/#post-14744406.
Third pick would be Twilight Princess' beta content (the forest, more interactions with animals, that cool giant forest ape thing):
https://www.unseen64.net/2008/06/02/zelda-twilight-princess-beta-analysis/
Fourth would be Bioshock Infinite in any stage of development other than the one we got, whether it's "rapture in the clouds"-style or some earlier style:
https://kotaku.com/this-is-bioshock-infinite-how-it-used-to-look-and-how-5781199
Lastly, while it's not cut content, Epic Mickey's original art promised something far different from what we got (and yes, I realize due to Disney being in control it probably never would have gone there):
https://www.youtube.com/watch?v=0QSo61H1Vsw