Sonic the Hedgehog: Bermuda Triangle

Sonic the Hedgehog: Bermuda Triangle is a platform videogame for Windows, Linux and MacOS systems. This game features a side story at Sonic the Hedgehog saga in which Sonic and co. must travel to the elusive Bermuda Triangle, in search for the all-new Titan Emeralds. It allows the concomitant usage of three playable characters, and the player may choose among FOUR teams consisting of those three characters.
==Plot==
Two millenia ago, there was an island named the Bermuda Triangle, in which the Tiger Eye Clan stored the Titan Emeralds, a twisted version of the Chaos Emeralds with a dubious power. Its first ruler was Oceanus, who relinquished his position due to an autoimmune disease, then his younger brother Hyperion took his place. The Black Arms once raided the island and threatened the Tiger Eye Clan. Hyperion was killed off in battle by those dark entities, but Selena the Lynx, Hyperion's only begotten child and heiress to the Clan's royal mantle, resorted to the Titan Emeralds' power in order to drive the Black Arms away and avenge her deceased father, also costing her own life in process. From then on, her wraith provoked chaotic phenomena surrounding the isle. Years later, Dr. Robotnik discovers the island and the Emeralds, and sets up a base on it. Sonic, Tails and Knuckles join this mission to retrieve the Titan Emeralds from Robotnik at all costs.
==Playable Characters==
* Team Sonic
** Sonic the Hedgehog
** Miles "Tails" Prower
** Knuckles the Echidna
* Team Hardcore
** Metal Sonic
** Ray the Flying Squirrel
** Mighty the Armadillo
* Team Shadow
** Shadow the Hedgehog
** Rouge the Bat
** Bianca the Tigress
* Team Chaotix
** Vector the Crocodile
** Espio the Chameleon
** Charmy Bee
==NPCs==
* Lord Oceanus
* Lord Hyperion
* Tethys (mentioned)
* Selena the Lynx
* Yvain "Eggman II" Robotnik
* Dr. Ivo "Eggman" Robotnik
==Zones==
Sonic the Hedgehog: Bermuda Triangle features redux versions of some Zones from the first two Sonic the Hedgehog volumes:
#Twilight Hill Zone
#Pyramid Palace Zone
#Siren's Gorge Zone
#Pachinko Town Zone
#Niflheim Cave Zone
#Paladin's Crypt Zone
#Shuttle Station Zone
#Ragnarök Base Zone
==New features==
===Titan Emeralds===
Just as mentioned above, the Titan Emeralds are a brand new resource in this game. The player must collect a minimal amount of Rings in order to unlock the special stage onto a checkpoint. This special stage is similar to the ones at the 8-bit version of the first Sonic the Hedgehog, except one must gather a certain amount of Rings in order to acquire one of the Titan Emeralds before time runs out.
===Ultra Transformations===
By collecting all seven Titan Emeralds from the Special Stages, all of the team members will have access to a more powerful form upon summoning the power of the Titan Emeralds. The mechanics of Ultra Transformation are exactly the same as Super/Hyper Transformations from other Sonic games.