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![Screenshot of Sonic 4's boss battle? [UPDATE 2] - The Sonic Stadium](https://www.sonicstadium.org/wp-content/uploads/2010/02/Sonic4newscreenb.jpg "Screenshot of Sonic 4's boss battle? [UPDATE 2] - The Sonic Stadium")
Screenshot of Sonic 4's boss battle? [UPDATE 2] - The Sonic Stadium
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