I want the same game layout as jetpack joyride only then in the theme spacecowboys.

I want the same game layout as jetpack joyride only then in the theme spacecowboys. You can choose at start a few different characters each with his own speciality. The theme has to be high tech space weapons and a armor against aliens. Not to scary aliens, more funny like aliens. The 3 starting characters are a big muscle build warrior with 1 heavy gun or heavy rocket launcher. A quick and lean girl with 2 guns or small machine guns. A normal warrior with 2 normal machine guns. You start with the normal warrior and you can unlock the heavy warrior and the girl with in app payments. The characters dont have a jetpack all the time!!! So they start with no jetpack!!! I want many lvls and weapon and armor upgrades. You can also earn trough the lvl special mech suits and special rockets etc. with a short time limit. Trough the lvl you can earn coins wich can be spend after each lvl on armor upgrades weapons, special pets etc. You can also make in app payments to buy more coins or just purchase directly special weapons and armor. In app payment will be made with diamonds. I want the game in high detailed 2d graphics. Also the game has to begin with a nice tutorial/story line. The story line is that aliens want to destroy earth and you have to protect it. Most of the lvls need to be fought in space ships. I dont want to pay directly a milestone of 200dollars of more. I dont expect the game tob e finisched in a few days. Take all the time you need. I do want to have weekly updates about the game progress.