Alright...I'll come clean on this....
Okami is one of the three games that I ever felt even an inkling of tears for. The other two are Katamari Damacy (I've explained it before) and Shadow of the Colossus.
Okami: I'll be honest, I'm pretty easy when it comes to this one. The final scene when
Issun has to force Ammy back with his own sword (puny as it is) in order to get her to board the Ark of Yamato. Losing Issun was like losing a friend. He was the heart of most of the game, being essentialy the voice for the player
. My god....I feel bad for crying a bit, but it was such a heart-wrenching scene...
Katamri: I've already explained it, but I'll do it again. I was having the worst of days, so when I came home and turned on my PS3, I decided to play the happiest damn game ever made. And you know what? It turned my entire day from shitty to ecstatic in only a few seconds, that I felt some tears fall out.
Shadow of the Colossus: The whole thing. The beauty of the landscape and the Colossi, the wonderfully sad music when you kill them, the ending plot-twist, the dead(?) girl, the goddamned horse. All of it was amazing, and it made me shed a few tears after I finished it.