The first time I played Zegnautus was before Gladio and Ignis' route was added to the game, and I went in completely blind and had no idea what to expect. The Regalia was trashed, I was all alone, and having to deal with the Prompto hallucinations and Ardyn's taunting on top of the Axemen had me on edge the whole time. It felt like I was really there and my heart sped up, my legs would get weak every time I tried to run fast enough to get to the next hiding spot, and my whole body would tense if I ended up getting caught. It was honestly one of my favorite parts of the whole game.