Grim fandango, that is art disguised to a game.
But anyway, the question if videogames are art or not is quite boring. But its not nearly as stupid as if videogames are culture or not. Here in sweden, its been a huge debate (at least it feels like that) everyone is going mad about whether its culture or not. I mean come on, of course its culture. Popular culture. Its something a lot of people do, and society blames it. Maybe even its art too =).