Ha not bad.
One of the easier games with medals, but not bad at all. I like the pixel style artwork that was used in the submission. Animation was smooth and everything seemed to work perfectly fine.
Some ideas that may make the submission better:
Upgrades between levels - I wouldn't mind seeing some things like shields or whatnot that you can buy in between levels. That of course would mean you would have to create some sort of money system in the game. That could simply be made by having the shoe collect coins or maybe something more shoe related to make the game match up.
You could have upgrades such as:
Shields - Protect you from getting hurt from one attack. Can be upgraded to protect from multiple attacks.
Shoe cannon - Shoot little Chinese people from your shoe or another type of weapon that shoots things down in front of you. When upgraded the attack could be bigger, you could get more ammo, and it could reload faster?
Bird swatter - Birds now don't kill the shoe for a certain amount of birds each level. Can be upgraded to kill more birds in a level.
Etc..
Levels and lives - I know that there were levels and lives, but just a simple number showing us what level we are on and how many lives we have left would have been a nice addition to the game.
Some ideas for achievements in this game:
20,000 KM - To be honest the game is quite easy at 10,000 KM. I think there should be one more distance to get.
Achievements for the game if you added other things I recommended:
Bird killer - You could have simply one or maybe more of these. You would first have to buy the bird swatter and then kill a certain amount of birds in a level or an overall amount of birds.
The upgrader - Upgrade all of your items to full potential. Could also have it for one upgrade at a time.
Etc..
Other than those ideas it wasn't too bad. Really simple and nice Chinese themed flash for the fun day yesterday.