Lost Valley

Lost Valley is a stage in Sonic Forces. This stage is a re-imagination and Morden Sonic's version of the Green Hill Zone from the original Sonic the Hedgehog for the Sega Mega Drive.

The Zone features the picturesque paradise with green fields that Green Hill is known for. After the area fell under Dr. Eggman's rule however, it has become dry and sandy due to the heavy desertification caused by Eggman's industries. It shared the same appearance with Green Hill, Arsenal Pyramid, and Guardian Rock.

Overview
Lost Valley is an overall peaceful and natural landscape with block-based brown mountains in the background and a lightly clouded blue sky. Like its original incarnation, the Zone features countless blocky hills in all manner of sizes and arrangements. Most of the Zone's ground is covered in green-striped grass (including on shuttle loops) that moves with the wind, and the soil itself is covered in checkerboard patterns in different shades of brown.

There are also several tall palm trees, bright flora like purple flowers and moving sunflowers, hard-pointed bushes, square-leafed ivy, and different types of Totem Poles with all manners of facial expressions. There are also a couple of wooden scaffolds. Destroyed Death Egg Robot sentinels can be seen, along with sandworms now inhabiting the desert.

Lost Valley has one major difference from its original incarnation: the bright lake that dominated the scenery in the background has been replaced with a sea of scorching sand, and all the Zone's waterfalls have turned into sandfalls, as if a desert is sprouting from the Zone itself. Also, the dried-out lake has formed deep canyons and caves in-between the hills. What looks like pyramids can also be spotted in the background.

Gameplay
Lost Valley is a fast-paced stage with an overwhelming number of enemies, such as Egg Pawns, and obstacles, such as Sandworm, and spikes. The stage also has Wisp Capsules with White Wisps for the player to use the Boost Gauge.

There are a number of pathways in the stage to choose from, whether it be if the player wants to go along a higher route or a lower route. Standard objects in Green Hill include Springs, Ramps, Boosters, Shuttle loops, and Red Star Rings.

Description
Modern Sonic's take on the level begins with Tail telling him that Eggman's forces are surging into the city him pacing and eventually speeding through Green Hill blazing through by using his boost move, jump through half destroy loops and comment on the Sandworms that now live in the desert.

There are many pathways in the Zone to choose, whether if the player wants to go along the higher route with numerous floating platforms, the basic center route, or the top pathway which is the most dangerous because of the Sandworms.

There are automatic curling tunnels that go through large hills and sends the player curling through tunnels at high speed. Once getting out on the other side of these tunnels, Sonic will slide down a sand fall and comment about Green Hill look like most like Sand Hill right now, before blazing through a Shuttle Loop to a wooden scaffold and running across a sand fall before blazing to the Resistance Flag.

Trivia

 * The background of the stage is similar to Desert Ruins from Sonic Lost World (specially in Zones 1 and 4).
 * The music for Modern Sonic's version of Green Hill Zone is a remix of "Fist Bump" which was also featured in Sonic Forces: Speed Battle.