Green Hill (Sonic Adventure 2)

For other similarly named levels, see Green Hill Zone (disambiguation).

Green Hill, as seen in Sonic Adventure 2.

Green Hill is a bonus level in Sonic Adventure 2, which is unlocked by obtaining all 180 Emblems and A Ranks on all Missions (barring Cannon's Core in the Dreamcast Version), that is essentially a 3D version of Green Hill Zone Act 1 from Sonic the Hedgehog. This version stays very true to the original, with appearances by classic enemies (read: Buzzbomber and Chopper). To make the level adapt to 3D, you will need to change direction at certain points.