Aircraft Carrier is one of the signature and recurring pieces of music in the Gradius series. Through the years, it has become one of the most memorable track of the series.
It can be considered one of the signature pieces of music in the series, in spite of its short length, and seemingly out of place tone. The theme is a high tempo jingle, used to signify that a large group of enemies are about to attack the player, (known as the stage's Sub Boss), and sometimes highlighting the arrival of the original Big Core warship.
Sometimes the track is renamed when used in additional games, and sometimes serves other functions, which are listed here: