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Dr. Eggman's nose in this game is the same color as his face in this entry. This is noteworthy as Eggman Nega retains his pink nose, so this is likely a mistake as no other designs were changed.
Contributed by CuriousUserX90
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The card of Shahra the Genie from Sonic and the Secret Rings has her name misspelled as "Shanhra".
Contributed by CuriousUserX90