Ending to portal theme song!

For those of you who haven't beat Portal yet, this is a spoiler. If you care about that sort of thing, you should go away.

Still here? Good.

The ending song in Portal is nine kinds of awesome. Someone captured it and posted it on YouTube. Behold!



If you haven't played the game, you could use a few interpretations to enjoy the song:

- You have a neat gun that makes warp portals. You shoot them onto the walls, walk in one end, and pop out the other side.

- You use this neat gun to complete potentially lethal rat-maze style puzzles. Throughout the game you get the impression that you are just another in a long line of prisoners.

- The maze is being administrated by an (literally) insane computer, who assures you that at the end of the puzzles you'll be rewarded with 'cake'. Occasionally you'll find graffiti on the wall saying 'The cake is a lie! The cake is a lie! The cake is a lie!'.

- When you complete the last puzzle, you don't get cake. Instead, the computer tries to feed you into a blast furnace. You manage to escape, find the computer, and destroy it. The facility explodes, you black out while flying toward the ceiling, and briefly regain consciousness under a clear blue sky, with debris raining from the heavens. Then the game plays you this song.

Update: I just found out that this song was written by Jonathan Coulton!