I Am An Air Traffic Controller Cheats (GameBoy Advance)

Complete the Tutorial and levels 1 and 2 to unlock a game editor option on the main menu.
The editor allows any previously completed missions to be changed.

Ha! You thought we wouldn't play through such a niche game, eh? Well, your fellow gamers
at IGN are a bit strange, so there. Tam has included a hidden Traffic Editor function that
you can unlock by beating some of the game's levels. To get it, complete the tutorial,
then beat Level 1 and at least two airports of Level 2. The Traffic Editor will now appear
as the third option on the main menu. It allows you to customize any of the missions you
have unlocked so far, including what plains arrive at what time, what the wind conditions
are, and so on.