You know, if Portal was a longer game, I'd give it Game of the Year (so far). It's just so...cool. According to some developer commentary in the game, there might be more Portal games in the future, which is cool. Personally, I'd like a DS version...puzzle games are great on-the-go...but I wonder if the DS could handle Portal...

Other cool things about Portal: the ending. Wow. Man, that was an awesome ending. In fact, there are kinda two endings. The second half of the game happens after the first "ending." I love games that do that. They go past the expected "ending." Symphony of the Night is another game that does that.

The last boss fight in Portal is infinitely better than Halo 3's. And the credits...<3.

...if you wanna spoil yourself or you think the puzzles in Portal are too hard, look up the ending/credits on YouTube. But you probably won't enjoy it as much as you would if you had played through the game first, so I suggest you play through it first. It'll only take a couple of hours. Like I said, the game is short.