Adventures of Sonic 1, Sonic the Hedgehog Hacks Wiki

Adventures of Sonic 1 is a Sonic 1 (16-bit) hack which re-themes the existing Sonic, and Dr. Eggman sprites with the fan-made "Adventures of Sonic the Hedgehog" versions based on the ones from the DIC Entertainment TV series of the same name. Dr. Eggman has been replaced by the Adventures version of Dr. Robotnik. Accessing this bonus stage requires 20 rings, and once you touch a starpost check point, stars will swirl on top of the post, jumping into the swirling stars will take you to the bonus

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