Gamers aren't well known for being pretentious. To further complicate things, art is subjective. One man's priceless Pollock is another man's vision of what a five-year-old having a seizure produces. On that note, we present High Delivery. Now, there's no blood or guns, but play it to the end and the sentiment is very sweet -- under the right conditions you may even shed a little tear.
Raph Koster has a very New Yorker-style explanation on his website about the title. It's not very often that we get to use a word like "subtle" to describe a game. Even other games given the "art" label like Ico and Shadow of the Colossus are more "awe inspiring," and there is nothing subtle about the Colossi. So, play High Delivery through once. Is it art?