The initial interface not only has wonderful background music, but also has an ethereal sound when the mouse points to each option button without clicking it. In the past, players didn't pay much attention to this, but during the interview, the author told the players that if you click five buttons from top to bottom and from left to right with the mouse, you can hear the beautiful five-syllable melody without clicking. Players who are familiar with movies must know that this melody is precisely the five-syllable melody used by human beings to communicate with aliens in the movie "The Third Intimate Contact"! When you play this five-syllable melody for the first two times, the screen remains the same, but when you play it for the third time with the mouse pointer, an alien flying saucer will fly out on the screen! The player tried it himself, not only summoned the flying saucer, but also changed the background music. If you click on the UFO, it will also show the list of people involved in the game design!