Hm ... Silent Hill Homecoming, Mechanarium, Hydrophobia, and Braid. Unless I don't, of course; I really don't like rushing through games.
Oh Braid ! One of my favorite games! I strongly suggest you take your time and enjoy that one! Be aware, after you finish the game, you should know there are hidden things in some stages. You should try to collect them because they are hard to get but fun, because it makes you use your brain. Good luck!