The Air Traffic Controller 2007 Level Builder With the level builder you can create your own levels and play them on your mobile. The editor works very simple: You can adjust sliders to change the amount of planes, types of planes and how much planes you want to clear. Choose a objective from the drop down menu and change destinations and money accordingly. And for even more variation you can also edit the following values: The size of the airfield The wind speed strength. If it’s day or night System malfunctions - If the controls are reversed during play. Emergencies The amount of no fly zones The amount of balloons in the level Cloud cover. When you are finished with your level don’t forget to choose a fitting Intro text and maybe a help text. Every adjustment changes the code in the bottom of the screen. This code you can enter in the bonus section of  the mobile game. Ps. Remember that there is a difference in zero 0 and O’s