Hallowmoon, also called the Feast of Sun and Moon,[1] is an event that appears in the Xbox 360/PlayStation 3 version of Sonic Unleashed. It is an annual festival in Shamar where the residents switch their daily life to nocturnal to honor the Moon and the morning sun.


Hallowmoon originates from the Shamaran custom of giving thanks to everything they see and their worshiping of the Moon and Sun. Believing in the philosophy that there cannot be morning without the night, the people of Shamar holds Hallowmoon for an unspecified period of time each year as a way of giving thanks to the Moon for bringing forth the Sun each morning.

During Hallowmoon, it is custom for the people of Shamar to pay their thanks by switching their daytime and nighttime routines, meaning the people perform their daily activities at night, and sleep during the day. When the Moon comes out, the people of Shamar say their prayers to it, expressing their gratitude to it for bringing forth the morning and watching over them.

Despite being a meaningful celebration, the personal dedication to Hallowmoon varies between people. People such as Labib finds Hallowmoon annoying because it messes up his daily routines, while those like Utba are so devoted to Hallowmoon that they spend all their time praying, leaving them extremely sleep deprived. Regardless of opinions, however, all the people understand the importance of Hallowmoon and overall accept the traditions.


  1. "A town of ruins and ancient customs, now celebrating the Feast of Sun and Moon." - Description of Shamar on the World Map in the Xbox 360/PlayStation 3 version of Sonic Unleashed.

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