Green Hill (Sonic Adventure 2)

Green Hill Zone returns in Sonic Adventure 2 in full 3D as an extra stage that can be unlocked by collecting all 180 emblems and by getting all A ranks in the game. The background music is a remixed version of the original music, and when Sonic jumps or destroys an enemy, the same sound effects from the original game are played instead of the new sound effects from Sonic Adventure 2. The level's layout is similar to the original level, but shifts land instead of going straight.