Have you played Crisis Core: Final Fantasy VII? Have you played it without knowledge of how it will end? That moved me. Made me cry a little. A character I grew to like so much, lost. A character who never did a thing wrong, and who did everything he could to be the best anyone could be. And he was still killed, and yet still remained, at least in my eyes, the hero he dreamed of being. That satisfies what you seem to thing is what defines art, but I would say its not the only thing. The original Mario games could be considered "art", for their perfection of platforming, and the fluid simplicity to it. Okami could be considered "art", for the wonderful world it created and stunning visuals, which while not realistic in any sense of the word, were an amazing blend of animation and traditional Japanese painting. Neither of these two games made me cry, and yet I would still class them as part of the ever expanding field of video game art, which does not and should not have to go by the standards of other mediums..