Playing a game with only one button doesn’t sound like it would be much fun, but Canabalt was able to pull it off.
Canabalt is played in wide-screen and uses a slick grayscale color scheme that looks awesome. The music is great too and adds the perfect soundtrack to the drama surrounding you.
I don’t know if there’s a story line to the game, but it basically looks like the city around you is falling apart and you’re jumping (your only button) from rooftop to rooftop trying to escape.
The furthest I’ve gotten so far is 2008m before hitting a wall and tumbling to my death. Try it and see how far you get!