Green Hill theme

Stages with a Green Hill theme have a natural setting. These stages often tend to be the first level in a game and often have a more simplistic and peaceful setting compared to later stages, with shorter levels and fewer enemies. This is one of the most common themes in the Sonic the Hedgehog series. Common elements include flowers, trees, grass, basic enemies and a peaceful setting. This kind of setting greatly resembles the Green Hill Zone, hence the name.

Stages with a Green Hill theme

 * Green Hill Zone, Sonic the Hedgehog (1991) - Green Hill Zone is the first eponymous example of a stage with a Green Hill theme.
 * Green Hill Zone, Sonic the Hedgehog (8-bit) (1991)
 * Bridge Zone, Sonic the H​edgehog (8-bit) (1991) - This zone also incorporates elements of the bridge theme.
 * Green Hills Zone, Sonic the Hedgehog​ 2 (8-bit) (1992) - This is the first example of a stage with a green hill theme that is not the first stage in the game. Despite this, the stage still contains a simplistic nature and few enemies.
 * Emerald Hill Zone, Sonic the Hedgehog 2 (1992)
 * Palmtree Panic, Sonic the Hedgehog CD (1993) - The round's main theme in all timelines; both future timelines also incorporate elements of the industrial theme.
 * Turquoise Hill Zone, Sonic Chaos (1993)
 * Mecha Green Hill Zone, Sonic Chaos (1993) - This stage also incorporates elements of the industrial theme.
 * Great Turquoise Zone, Sonic the Hedgehog Triple Trouble (1994)
 * Green Grove Zone, Sonic 3D Blast (1996)
 * Green Hill Zone, Sonic Blast (1996)
 * Jade Gully Zone, Sonic X-treme (Scrapped)
 * Neo South Island Zone, Sonic Pocket Adventure (1999)
 * Neo Green Hill Zone, Sonic Advance (2001)
 * Green Hill Zone, Sonic Adventure 2 (2001) -
 * Leaf Forest, Sonic Advance 2 (2002) - Despite the name, Leaf Forest has no elements of the forest theme (including no trees). This stage also incorporates elements of the underwater theme.
 * Seaside Hill, Sonic Heroes (2003) - This stage also incorporates elements of the ancient ruins and coastal theme.
 * Frog Forest, Sonic Heroes (2003) - This stage also incorporates elements of a forest theme.
 * Sunset Hill, Sonic Advance 3 (2004)
 * Green Hill Zone, Sonic Jump (2005) -
 * Forest Falls Zone, Sonic Rivals (2006)
 * Sunset Forest Zone, Sonic Rivals 2 (2007)
 * Green Hill, Sega Superstars Tennis (2008)
 * Titanic Plain,  Sonic and the Black Knight (2009)
 * Great Megalith, Sonic and the Black Knight (2009)
 * Splash Hill Zone, Sonic the Hedgehog 4: Episode I (2010)
 * Green Hill Zone, Sonic Generations (2011)
 * Green Hill Zone, Sonic Jump (2012)
 * Windy Hill, Sonic Lost World (2013) - Mainly predominates in Zones 1, 2 and 4.
 * Sky Road, Sonic Lost World (2013) - Only in Zone 1, which also incorporates elements of a sky theme.