Ifrit


 * You may be looking for the Ifrit Golem from Sonic and the Secret Rings.

The Ifrit (イフリート) is the final boss of Sonic Rivals 2. It is a demonic creature from an alternate dimension, and feeds on Chao to make it stronger. In the game, Eggman Nega (again disguised as Doctor Eggman) discovers a book (Gerald Robotnik's journal) that explains the Ifrit's power. He intends to free it from its dimension to help him conquer the world, but is unable to open the portal unless he gets the Chaos Emeralds and Chao for the Ifrit to feed upon.

Eggman Nega hires Rouge the Bat to find the Emeralds. On the advice of Doctor Eggman, Shadow and Metal Sonic attempt to find the Chaos Emeralds first to thwart Nega's plans. At the same time, Silver the Hedgehog arrives from a dystopian future that has been destroyed by the Ifrit, and tries to prevent Eggman Nega from finding the Chao (in the process, allying with Espio the Chameleon), in the process, leading Sonic and Tails to investigate the Chao's disappearance.

Rouge, nevertheless, manages to find six of the Emeralds (with some unwitting assistance from Knuckles the Echidna) and brings them to Eggman Nega in the Mystic Haunt Zone. The other teams also converge in this area, and witness Eggman Nega using the Emeralds to open a portal to the Ifrit's world. On the other side, Eggman Nega uses Metal Sonic 3.0 to awaken and defend the Ifrit, which manages to possess Sonic and Tails (or Knuckles and Rouge, depending on which team the player is controlling), but is defeated by the other teams, and is destroyed.

Shadow and Metal Sonic manage to close the portal, sealing themselves and Eggman Nega in the Ifrit's dimension but allowing the other teams to escape. It is revealed that Metal Sonic had the seventh Chaos Emerald all along, which Shadow and Metal use to activate Chaos Control and escape back to their own world, leaving Eggman Nega trapped in the Ifrit's dimension alone.

Trivia

 * The Ifrit shares many similarities to Iblis from Sonic the Hedgehog (2006): Both are fiery creatures resembling the devil in Islamic culture, both have names starting with an "I", and both threaten Silver's future.
 * The Ifrit is also similar to the Ifrit Golem from Sonic and the Secret Rings, being that they both live in lava, and the word 'Ifrit' is in both their names.