Assertion: rouge's appearance | /r/HasProperty | supporting character
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Source sentences:
text: The character has made other sporadic appearances throughout the series, including as a type of gun in Shadow the Hedgehog, a referee in Sonic Riders, a collectible card and referee in Sonic Rivals 2, a referee in Mario and Sonic at the Olympic Games, a supporting character in multiplayer of Sonic and the Secret Rings, and the host of the World Grand Prix in Sonic Free Riders.