Gameplay requires players to switch between team members and take advantage of each's unique abilities to complete levels, and collect the seven Chaos Emeralds in special stages. Sonic Heroes features twelve playable characters divided into pre-determined teams of three. Set six months after the events of Sonic Adventure 2, the story follows four individual groups of characters in their quests to find Doctor Eggman meanwhile, Metal Sonic secretly manipulates these events.

Sonic Heroes  is a 2003 3D platform game in Sega's Sonic the Hedgehog series.