According to the "Minihamuzu Tomodachi Book":
- Her favorite foods are strawberry Pocky, Bibimbap, and plain Yakisoba.
- She likes to play on playground slides and her hamster wheel.
- She loves to go shopping at 109.
- In some media, her name is written in English as "Good", possibly due to mistranslation.
- In Hamtaro: Ham Ham Grand Prix - The Miracle of Aurora Valley, Guu was replaced by Aiko, due to Mari Yaguchi leaving Mini-Moni before the film's production.
- Main article: Guu/Gallery
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