The boss battle between you and the female URTV 668, Citrine.
Disclaimer: I don't own the game or anything else that might be copyrighted in this video. Can't believe this has to be said, but just in case. Don't own any of that crap. I only own the physical copy of the game, but not the property itself. All rights reserved to their respective owners and copyright holders. If I forgot something, my bad, but I'm pretty sure I got this covered.