Portal Still Alive

[edit] Achievements

Go for the Gold (15 points) - Win a gold metal on a challenge map.
Out of the Blue (25 points) - Once you have control of both portals, only enter the orange portal.
Rat's Tale (15 points) - Find all the Rat Man dens.
Is Anyone There? (20 points) - Complete the game without ever taking a bullet.
Saw That One Coming (5 points) - Cause a rocket sentry to destroy its own rocket when the rocket has been redirected back towards it.
The Camera Adds 10 Pounds (10 points) - Knock a turret over with a security camera.
Like a Rat (20 points) - Trap yourself in a test chamber so that GLaDOS has to help you continue.
A Feeling Like Floating (5 points) - Dissolve a turret.
Tests Like Chicken (15 points) - Find the chicken's test results.
Cupcake (10 points) - Beat 5 advanced chambers
Fruitcake (25 points) - Beat 10 advanced chambers
Vanilla Crazy Cake (35 points) - Beat all advanced chambers