Romaji: Sonikku Adobansu) is a platformer game released for the Game Boy Advance. It is one of the first video games released by Sega after they became a third party publisher. The game later spawned two sequels. This game stars Sonic as a playable character throughout the entire game.
The player can choose to play as Sonic, Knuckles, Tails, and Amy. Each have different skills, Sonic is the fastest. Knuckles can punch and guild in the air. Amy has her pico hammer. Tails can fly. There is a boss at the end of each zone.