On a side note, I'm going through the challenges and advanced levels. The last advanced level was the only one to give me difficulties at the
room with 4 turrets, where you have to jump across the room to get a box. And below the box is a switch to open the passage out and make the wall point at a 45degree angle
.
Doing the challenges, and they are insane! Forget the least steps and least time, I'm rubbish at those. And as for the least portals, I can get bronze on the first test, gold on the second (go me! 2 portals, that's all!), and none on the others! >_< INSANE!
Still, got my Terminal Velocity award, which was crazy! Next is long jump!
Just finished the game, totally awesome. Agree fully with everybody who said they loved the credits.
I really liked how the game dynamic changed at the end towards the esacpe, it had the right amount of tension and puzzles to keep me on my toes. Really loved the bit with the pit full of turrets, I felt so smart taking them all out one by one
I was also reminded that for those who haven't actually bought Portal yet, you can try the gameplay style by playing Excite mod for HL2, which features slightly buggy multiplayer Portal action. Wootabulous!