HTML5 Game - 2D Spaceship racer

--== Please bid only if you have finished at least one game with ImpactJS, or if you're willing to learn how it works (you will need strong javascript knowledge)! ==-- I need a 2D game made with the ImpactJS platform. I have a license for ImpactJS, I will give you all the needed ImpactJS files. The game needs to look and function like: [login to view URL] I need the main following entities created with their expected behaviour: - player ship - movement only; has a life bar; - enemy ship - simple AI, tries to finish the race before the player; has own life bar; - asteroid; - start and finish checkpoints; - enemy turret (with bullets). - a main menu with level select (for this project I need only one level); You can use whatever graphics you can find as placeholders, I will replace them afterwards. I am ready to answer any further questions. Deadline: 1st of November. Thanks.