Place the game disc in a PC compatible CD-ROM drive and open the "master01.bmp" file.
While the game was in development, the game programmers wanted to implement speech. However in the final version, the speech was not included. The speech was only in the battle system. Use the following steps to hear the voices that they were going to use. Turn on the Dreamcast with no disc. When the system screen shows up, go to CD player. While at the screen with the CD Player controls, insert either game disc. When the disc is loaded in the CD player, the Skies of Arcadia CD will appear. Select "Play" to hear the hidden audio.
Secret Aika FMV sequence
Begin a game and pass the part with Alfonso's ship, then return to your island. Get out of the underground base of Pirate Isle. Aika will say that she needs to freshen up a bit. Go to her house, then face towards the door. Go all the way to the left left until you see a clothesline. In that one corner you will see, pasted on the wall of that house corner, a handkerchief. Inspect the handkerchief and you will see a hidden FMV sequence of how Aika looks with her hair down.