I legit didn't label this, but based on some of the things I wrote below I'm fairly sure it's the Uncharted demo. I'm a little harsh on it but I really didn't know what I was doing at that point. Spoiler alert: I've played Prince of Persia at point of posting, so maybe I'll revisit it and see if I do any better.
Edit 5/26: Well, I revisited it and might post my talking about it. summary: it wasn't the platforming that was the issue, it was the stupid fps during which lady I had to protect kept dying
Summary: HOW DO I PLATFORM?!? /frustrationquit (I mean, I’ll have to figure it out eventually if I wanna play Assassin’s Creed or Prince of Persia, but still. Argh.)