I just finished playing through Portal. (If you’ve played it, you probably figured that out from the title of the post.) It’s a fun game, and certainly deserving of most of the hype it’s received. A friend of mine recently said that it was nice to see a good 3D engine used for something other than a First Person Shooter, and I agree.
It’s a great puzzle game that consistently reminded me of Zelda (Ocarina of Time, specifically). It has a good learning curve right up until the last two levels, each of whose difficulty easily dwarfs all previous levels combined.
Like many good puzzle games, it’s strangely addictive. I get simulator sickness from playing most 3D games, and Portal was no exception. I have a headache and an upset stomach as I write this, in fact. It was a mild effect though, unlike some other games I’ve played. Anyway, my point is that the game was good enough to play through the slight dizziness.
If you’re at all interested in Portal, go play it.