An airline management simulation, what is it?
It's a video game that lets you see what it's like to run your own airline, but that's not important right now.
Press Select at the title screen to access the game's sound test. Here, press Up or Down to select the track you want to play, A to play it, and B to return to the title screen. Interestingly, there is no "No. 2" in the sound test, only No. 1, No. 3, and so on. "No. 2", which is the game's ending theme, can be accessed with Pro Action Replay code 7E018401.