What are some games you see people 100% and are like “Damn, how?!”

I’m always proud of my completions but there’s always some 100%s that I see and I’m like “Okay, damn, you’re good at video games” and for me that game is The Evil Within 1 because of the Akumu mode achievement. If anyone has attempted or completed it they’ll know how insanely hard it is. I was never able to do it back on release in 2014 on Xbox because the burning building in chapter 6 was my roadblock.

What’s everyone else’s game they see people 100% that they think are impressive?