"Sonic Heroes" is a platform video game developed by Sega and released in 2003. It features Sonic the Hedgehog and his friends as they team up to stop the evil Dr. Eggman. Players can choose from twelve characters, divided into four teams, each with unique abilities and gameplay styles. The game is set in various colorful environments, where players navigate through levels, defeat enemies, and collect Chaos Emeralds. The gameplay emphasizes teamwork, allowing players to switch between characters in their team to utilize different skills and strategies to progress through the game.