Build a simple HTML5 animation game.

Hello, I need someone to build me a simple, one page, animation game using HTML5. The design is as follows: Imagine a square, birds are flying across the top and the player is situated at the bottom with a gun. The challenge is to shoot the birds as they come out. There is only one level but it should get comparatively difficult as the player shoots more birds. You will draw the background and the birds. There doesn't need to be a person holding the gun. It can simply be a gun only. This is a simple, quick project and I will expect the winner to finish it within 48 hours. Please if you cannot meet this target, then don't bid. I will select based on price and commitment to deliver on schedule. Happy bidding.