Cows vs Aliens is a two-player 1D game that combines retrofuturistic design aesthetics with custom-built physical interaction hardware. The game is displayed on a single strip of NeoPixels, with each player operating a unique physical interface. The alien controls a joystick and button to activate a tractor beam, while the cow uses two buttons to dodge. The objective for each player is simple: capture or evade. Built as part of an interface design studio, the project explores physical computing, state diagram programming, and custom electronic fabrication.