ACHIEVEMENT - HOW TO UNLOCK Aperture Science - Earn gold medals on all Portal challenges. Basic Science - Earn bronze medals on all Portal challenges. Camera Shy - Detach security cameras from the walls. Cupcake - Beat two Portal advanced maps. Fratricide - Do whatever it takes to survive. Friendly Fire - Knock down a turret with another turret. Fruitcake - Beat four Portal advanced maps. Heartbreaker - Complete Portal. Lab Rat - Acquire the fully powered Aperture Science Handheld Portal Device. Long Jump - Jump 300 feet. Partygoer - Make the correct party escort submission position decision. Rocket Science - Earn silver medals on all Portal challenges. Terminal Velocity - Fall 30,000 feet. Transmission Received - Find and receive all 26 radio transmissions. Vanilla Crazy Cake - Beat all six Portal advanced maps.