Why does the Tails Doll have a gem?

The Tails Doll, a character from the game *Sonic R*, doesn't actually have a gem. It's a common misconception that stems from its design and the way it's portrayed in fan art and other media.

The Tails Doll's Design:

* Red Eyes: The Tails Doll's eyes are a bright red, which some people associate with gems. This is likely due to the fact that many characters in the Sonic series (like Knuckles) have gem-like eyes.

* Metallic Appearance: The doll has a metallic appearance, which can also make people think of gems.

* Fan Art and Interpretations: Fans have often depicted the Tails Doll with a gem on its forehead or chest, further contributing to the misconception.

In Conclusion:

The Tails Doll's design, particularly its red eyes and metallic appearance, might lead some to believe it has a gem, but there's no official information in the game or other official sources to support this. It's likely a fan-made interpretation that has become widely accepted.