Master Puzzler Achievement
Complete Episode Two using the Hint Button no more than five times.
Just do not use the hint button more than 5 times throughout your entire playthrough of Episode Two. The game is actually not that hard and gives you plenty of guidance. The hint button is not even needed. You CAN skip as many puzzles as you want and that will not affect this achievement at all. If you get stuck somewhere, use the Story Related Achievements section of the guide to figure out what to do.