How to beat Portal
It made me 
"Favorite game!"
How I did it: I was proud that I did not have to use any cheats. I still need to go back and do all of the achievements and bonus maps though. My computer graphics are not good enough to read the graffiti on the walls, and there were a few times I got stuck and had to take a break from the game before I threw my computer out the window, but I really loved this game. I get frustrated with long games, so this was the perfect length to keep my interest.
Lessons & tips: Step away from it and think about it for a bit if you get stuck.
