This, ladies and gents, is pretty much the coolest thing you could do with a NERF Vulcan gun.
Instructables user, BrittLiv, has managed to build a fully automatic tracking sentry gun - and it is amazing.
While it can be fired using a Playstation remote the real genius lies in its ability to track individuals and even not shoot people wearing a t-shirt with a specific logo.
What's even better is the very generous BrittLiv has shared her knowledge so you can build your very own.