Virtual reality is an amazing new frontier for gaming and entertainment.
And, it turns out, people looking for new ways to totally freak out their friends.
This is a great example - a guy in a Russian shopping centre is testing out Oculus Rift and is playing a demo where he rides a roller coaster. In the game he crests the first climb and then... his friend takes out his legs.
What happens next is predictable, cruel and totally hilarious. Congratulations Facebook - you just bought the meanest prank machine in history.