In the actual games, I mean. The closest I've ever seen to him having any kind of happy emotion is in GoW2 right around where you fight the Kraken near the end of the game. It's when his wife magically appears and he says "I'm so sorry, my love. Can you ever forgive me?" Keep in mind, I have only played GoW 1, 2, and 3. I skipped the PSP games on account of my not giving a shit but I seriously doubt he has ever been even remotely happy in either of the PSP games. In the original three GoW games, maybe to a lesser extent in 1 and 2, there is barely anything to his character except unbridled rage. He has just always seemed like a 1 dimensional character if he's just angry all of the time.