My idea was Portal 2: Glitchless. Title says it all, really. Portal 1 has glitchless, so why not Portal 2, too?

I do want to say that triggering dialogue early and bunny hopping would still be allowed, and gels would be mostly the same, too*. This category would be the most "dev intended" way to play the game; no reportals, portal bumping, crouch flying, and one-frame laser activations, among others, would not.

• in Chapter 7, at the end on 3 Gels, you bounce of off a pipe containing blue gel. I would still allow that in this route.