Tails Doll

The Tails Doll (Te-Ru Doru in Japenese, and also is mistakenly called Puppet Tails or Tails Puppet) is a robot / doll version of Tails built by Dr. Robotnik. He is comparable to Tails in the same way that Metal Sonic is comparable to Sonic. Tails Doll has a metal rod coming protruding out of the top of its head leading to a red gem that seems to control the creature's movements. Tails Doll appeared only in Sonic R, as an unlockable character on the Radical City course by collecting 5 Sonic Tokens.

Trivia

 * Although not the same character, in Sonic Adventure, there are doll versions of Tails, Sonic, and Knuckles used as practice dummies for Eggman's robots (such as E-102 Gamma in his tutorial level). They appear incapable of moving on their own as the Tails Doll can.
 * In Sonic Rivals, the doll versions of Tails from Sonic Adventure appears on a collectible card and is named "Tails Doll."
 * Scratch and Grounder once tried to lure Sonic into a trap using a Tails-shaped doll in an episode of Adventures of Sonic the Hedgehog.
 * The Tails Doll makes a brief cameo in Sonic Issue 134 along with Pyjamas, Ebony, and Tekno. It appears next to Big when King Max starts giving the announcement that Sally is going to rule the kingdom in his absence. He also appears on the last page of story 1 in the top left section of the audience.
 * As of 2005, the Tails Doll has become an internet meme thanks to rumors of a curse it carried.