In Adventure Fields, you can also go under the Three Chao Gardens, under the Three Adventure Fields. Adventure Fields are a huge map where you can select Stages and Roam around to catch Emblems. Adventure is the story and you can go around Adventure Fields. There is also 2 Modes Trial and Adventure. Sometimes, you have to fight the E-Series which are other E-102's. And as E-102 Gamma, you shoot objects to get time and try and catch Froggy, too. As Big, you go fishing for his pet Froggy which was tricky for others but you have to check Big's Controls to catch Froggy easier. As Amy, You run away from an Evil Robot of the name of Zero and hop to the balloon. As Knuckles, You will glide around, climb, dig and search for shattered pieces of the Master Emerald. As Tails, You race Sonic to an end of a stage to get a Chaos Emerald, and in his final level you race Eggman. As Sonic, you Run around in a Stage and get to the Capsule and Save the Animals. Tails the Fox, Knuckles the Echidna, Amy Rose, NEW Big the Cat and NEW E-102 Gamma. You can not only play as Sonic but you unlock 5 other Characters. Sonic later gets revealed he's by the name of Chaos. Sonic found a Mysteries Creature and went Face-to-Face Combat with him. Cops chase downtown and something fancied Sonic to help. You play as Sonic the Hedgehog in the beginning of the game, where you are relaxing in a city known as 'Station Square'. You Start up the game, and boom! Your favorite Sonic the Hedgehog Game is on.