The Can You See Me Now mixed reality game I played (and won - there was a competition for who could elude the runners the longest, and I managed nearly 2 hours) back at university is meant to be an art game.

The game itself is quite simple: you control an avatar in a virtual construction of a real-life place (when I played it was a section of Sussex University). Your avatar is being chased by runners, who are real people with GPS and 3G phones. If the real-life runner ends up in the same place as your avatar, then you're caught.

The art part is that at the beginning you're asked to enter the name of someone you haven't seen for some time. When you eventually get caught, you see the message "Runner 1 has seen NAME", where NAME is the name you entered at the start.