Shadow of the Colossus.
I suppose it is a tad early to call this one a “classic,” but even someone like Guillermo del Toro felt strongly enough about it to proclaim it a “masterpiece.” It was one of those games that sort of “snuck” into the PS2 library. Most gamers seemed to breeze right by this one, perhaps even lifting it off the shelf and reading its deceptively vague insert. Others may have peered into the shadowy figure on the cover and instantly lost their sanity, screaming obscenities and jumping through one of the massive glass windows at Media Play. The few that actually played it however, found it contained within its shiny disc a hundred Christmas mornings… and I’m talking about the good ones, like the time you peeled open the wrapping paper and found a Sega Saturn PS2.