Sonic the Hedgehog: Triple Trouble (Sonic & Tails 2 in Japan) is a video game that was released for the Game Gear. It was also one of the first three games from the Game Gear to be released to the 3DS eShop.
In this game. you can once again play as Sonic and Tails. Sonic no longer has the super peelout move and Tails now can fly longer distances. Special stages return in this game. There are two different special stages; one of a maze with a timer and another with sonic and tails in the tornado. There are two different types of boss fights; one with Nack the weasel in the end of the special stage and the other one with Doctor Eggman in the end of each zone.
Doctor Eggman has gotten all of the chaos emeralds, but then an accident happens on the atomic destroyer that sends all of the chaos emeralds all over the island. Sonic and Tails go off to try to find all of the chaos emeralds. But are stopped by Knuckles. Who has been tricked by Doctor Eggman into helping him. A treasure hunter called Nack the Weasel is also trying to get the chaos emeralds.