Portal: Still Alive

Mission Intelligence: Portal: Still Alive is a first-person puzzle platformer where players weaponize teleportation portals to navigate lethal test chambers. Using physics, momentum, and spatial logic, every move becomes an elegant systems puzzle. The Xbox version adds bonus challenge maps, rewarding precision, experimentation, and speedrun-friendly routing. Keywords: Portal puzzles, physics platformer, Xbox Live Arcade, first-person logic game.