How a game design student in California brought Portal to a graphing calculator

Alex Marcolina is a game design student based in California. He impressed the gaming community when he recently released Portal Prelude for Texas Instruments’ Ti-83 and Ti-84 graphing calculators. It pushes physics, graphics and animation on a very limited piece of hardware through 38 Portal-style test chambers. Portal is a first-person view puzzle platformer game for consoles and PC by Valve Software.