Great job! Small nitpick that's bothering me: The 'Sign up' & 'Download' text inside the bottom buttons is not vertically centered. (This is on Chrome 27.0.1453.110)
This is a non-story. This occurred in Botswana, where cars drive on the left side of the road, so the donkey is in front of the car. You can also see the donkey standing by the side of the road if you move slightly further along.
I'm a big fan of https://www.google.com/flights/explorer, since it gives me an immediate picture of how far in advance I should book to get the lowest prices.
Yeah, it's meant to be a two-player game. It's really tough to play alone! We're looking into networked play, though we can't modify the live site while the Game On judging is in progress.
This is a game I created with 2 other students for Mozilla's Game On competition. It works best in Chrome or Safari, but is generally playable in Firefox 4. If you sign up for an account, you can make your own levels and share your levels page with anyone!