One above. One bellow. Fail.EditMove into a space with a portal surface above and below. Now take your hands off the walking controls. Shoot an orange above you. Now a blue below you. Now realise that you just failed (no moving, that's cheating.)
Getting torn apart by Wheatly and Glados' words.Edit
Press the button!
Don't you dare press that button!
Quick, press it!
I will doom you if you do!
Just press the damn button!
Which is a bigger fail?