Heroes:
Sonic the Hedgehog
Miles "Tails" Prower
Knuckles the Echidna
Amy Rose
Tangle the Lemur
Blaze the Cat
Espio the Chameleon
Vector the Crocodile
Charmy Bee
Rouge the Bat
Shadow the Hedgehog
Silver the Hedgehog
Whisper the Wolf
Cream the Rabbit
Cheese the Chao
Gemerl
E-123 Omega
Big the Cat
Belle the Tinkerer
Lanolin the Sheep
Supporting Cast:
Vanilla the Rabbit
Cheese the Chao
Chocola the Chao
Froggy
Omochao
Jewel the Beetle
Elder Scruffy
Nite the Owl
Don the Rooster
Groups:
The Restoration
The Diamond Cutters
The Chaotix Detective Agency
Team Dark
The Wisps
The Scrapniks
Equipment:
Wispons
Villains:
Doctor Eggman
Orbot
Cubot
Doctor Starline
Rough the Skunk
Tumble the Skunk
Metal Sonic
E-107 Theta
Neo Metal Sonic
Zavok
Mimic the Octopus
Clutch the Opossom
Surge the Tenrec
Kitsunami the Fennec
Villainous Groups:
The Eggman Empire
The Badniks
The Deadly Six
The Babylon Rogues
Locations:
Green Hill
Angel Island
Vista View
Riverside
Barricade Town
Spiral Hill Village
Windmill Village
Eggman Land
Imperial City
Lost Hex
Mystic Jungle
The Final Egg
Frozen Peak
Seaside City
Floral Forest Village
Altar Emerald
Sunset City
Turtleshell Island
Central City
Ice Paradise
Orchardville
Winterburg
Forest Hill
White Park Zone
Dusty Desert