You like Team Fortress 2? You like the old Teenage Mutant Ninja Turtles arcade game? Watch this.
It's Team Fortress 2 as a side-scrolling, beat-em-up arcade game. If you're wondering why the whole thing looks so awesome/authentic, that's because it's the product of Eric Ruth, who has already give us retro demakes of games like Halo and Left 4 Dead, along with the fantastical fighting game Head 2 Head.