Again, this relates to the utterly inconceivable "Aperture Science" Achievement, that involves earning gold medals on every challenge.
It's just not feasible with a console controller.
Now, again, don't misunderstand me. I've always been a proponent of the dual analog setup. I am much more proficient with two joysticks than a mouse and keyboard, so long as I'm facing opponents who are also playing with two joysticks. The problem with this Achievement is that it was play tested by people using a PC control scheme, and the scores to beat were merely transferred over to the 360 and PS3.
And it works for some of them. For instance, all of the "least portal" challenges can still be done with a dual analog controller, as they are more about thinking and conserving your resources. Indeed, one of my favorite experiences in Portal
was playing through the sentry gun level without using any portals (until the very end). But when it comes to the "least steps" and "least time" challenges, I would posit that some of them literally cannot be accomplished without a mouse.
Take a look at this video
, for example. It's the level with the Weighted Companion Cube (<3), and the guy jumps from the second platform to the end without raising the third platform up. I have attempted this maneuver on my 360, and I have fallen FAR short of the goal.
It's a bit ironic, I suppose. I love Portal
, and I love Achievements, but I don't
love the Achievements in Portal
. For the most part, they don't add any enjoyment to the game, and in some cases they actually take away from it. And it makes me sad, because I will eventually have every Achievement in the Orange Box
, EXCEPT for that damn "Aperture Science" one.