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Yukigasen was a badnik modelled after a snowman.
History
Past
After Sonic the Hedgehog managed to defeat Dr. Eggman in their previous encounter, the doctor disappeared. However, his robot forces remained and continued to attack without a leader. Among these robots were the Yukigasen. After Dr. Eggman recovered his memories, all the badniks, including these badniks, came under his control again. #1, #7
Winter Jam
When Sonic, Rouge, Omega, Tails, Amy, Cream and Big were abducted by a giant robot to play Orbot and Cubot’s reality game show, a Gaogao was among the assortment of Badniks acting as an audience. (Sonic the Hedgehog: Winter Jam)
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