Picture it: you’re at the 2013 edition of Nerd Prom, finally taking a break from waiting in long-ass Hall H lines and getting something to eat. Then, some dude wearing some sort of outfit from Assassin’s Creed runs up and jumps right over your burgers. It’d freak you out, right?

You don’t see much reaction from the people that show up in this new parkour video by YouTuber DevinSupertramp. Sure, lots of weird funny things happen at Comic-Con but it’s not everyday that someone (who’s not Spider-Man) climbs up a building.