Two days ago, Portal 2's Perpetual Testing Initiative DLC arrived, allowing anyone to create their own puzzles. No matter how awesome your creation will be, odds are it will sadly not be as awesome as one Penn State University student's final project for his Advanced Mechatronics class — a tracking and shooting Portal turret. The "shell" is currently in development, but the video below shows the frame of the turret, equipped with an IP webcam and two USB-powered Nerf rocket launchers. Powered by MATLAB, the turret features Portal sound effects and tracks anyone wearing a pink shirt, eventually shooting the target. Pretty impressive if you ask me!