Windy Hill

Windy Hill (ウィンディヒル) is the first Zone in Sonic Lost World. Windy Hill is located on Lost Hex, the main setting of the game. It features an idyllic, grassy setting, with lush green trees and simple plant life, a trait followed by most first levels of the Sonic the Hedgehog series video games. Many aspects, such as having sections of the soil in brown checkerboard pattern, and water flows with timber bridges over them. Windy Hill also features variable sheep, which are moving around peacefully in the Zone.

Act One (Wii U)
Act One of Windy Hill starts off with an open-world-like platform, where Sonic can walk above, on the side, and below the platform to move forward. Alternate pathways can vary between which side Sonic is on. Most of the act is like this, as the middle section features Sonic running left to right on a bird-eyes view plain. This level features cloud platforms similar to those in Sky Sanctuary, where Sonic can jump on them and bounce off of the clouds to jump higher. Giant springs on same little planetoids are present to help Sonic navigate is way towards the goal, which contains a Capsule.

Act One (3DS)
The level is broken up into sections separated by large springs. The first section involves Sonic running up a wall and platforming. Speed Shoes are available in this section. Two Red Rings can also be found. The second section is a short auto-running section where Sonic can gain some rings and a Lightning Shield. In the third section, Sonic moves between moving landmasses spawned by giant totem poles. In the fourth section, Sonic can use the new purple Wisp; this section introduces Caterkillers and a large Sandworm that blocks springs used to gain access to new sections. The next section has Sonic running across crumbling platforms while avoiding Motobugs, bouncing on clouds and using Dash Rings, and avoiding spike balls. The next section is comprised mostly of wall-running. After that, Sonic is launched into a side-scrolling chase/platforming sequence involving him running from a giant pink Sandworm, similar to classic Sonic's Orca chase from the Nintendo 3DS version of Sonic Generations. After outrunning it, Sonic is launched to the final section containing the Capsule.

Act Two (Wii U)
Act two appears to be first, 2.5D format act in the entire game, where the player has to move through the long tunnel route with full of waterfalls, sheep and enemies. The player gets introduced to Indigo Wisp in this act as well. This act takes place on sunset and after getting out the tunnel, it turns out to be night time of the Zone. Also when the player comes out the tunnel, the odd yellow moon with black void eyes and cyan eyes is floating in the night sky. In the end of the act, the player encounters Zazz for the first time. After defeating Zazz, the player clears the second act.

Act Three (Wii U)
Act Three of Windy Hill takes place in an ancient ruins inside a gem mine, designed inside a tube. Sonic can go all around the tube, as badniks such as Moto Bugs and Bat Brains, can hurt Sonic if the player does not avoid them. The Cyan Wisp is found in this stage, which can transform Sonic into Cyan Laser. Sonic can stomp on blue-like glass beneath him to find a secret area which features rings and sometimes Red Star Rings. The final part of the act features Sonic going through multiple boost treadmills until the player reaches the final chamber, where a capsule fill of animal friends await to be freed.

Act Four (Wii U)
First time shown in Gamecom's demo, act 4 has two different sections. The first section, where the player begins, is long, floating half-tubular route, that has bridges with Choppers jumping over them, Orbinauts trying to stop the player and dangerous spiky garlands, which spin around the route and the player should avoid them. There are also numerous sheep ranging around the route. The player has to avoid the single sheep, which can turn into red and try push the player into bottomless pit.

When the player reaches to the end of route, he/she will be bounced to second section in the act, that involves side viewed 2.5D platforming. There are numerous shuttle loops, and waterfalls, which have slowly falling logs. The player here can find secret pathways located underground and the player has to look out Caterkillers and Motobugs. There are also large windmills with platforms on them and yellow, living flowers, which can act similarly like saw blades, but which can also be dangerous for the player too. The player once again here is able to use Indigo Wisp and its Color Power called Indigo Asteroid. Destroying enough of the enemies and even some of the zone's structures and loops, the player can be transported to bonus part of the act, that has numerous amount of Rings. The player will come across with Zazz for the second time in the end of the fourth act. After chasing Zazz and becoming chased, the second boss encounter against Zazz takes place and after defeating him once again, the player has completed the act.

Boss
Zazz is the boss of Windy Hill and the player encounters him in the end of act two and four. In the end of act two, he appears to hover with moon-shaped object, that can shoot stars from it's mouth. If the player manages to hit enough of the moon object, Zazz will fall down and tries to fight against the player himself. During this, the player is able to damage Zazz.

In the act four however, after the player runs past the latest Star Post, the player will come across with Zazz, who start running away with huge, familiar yellow moon on his hand, that shoots stars to the sky. These stars will fall down to the ground, which the player should avoid. Zazz also tries throw yellow objects into the player. After chasing Zazz and becoming chased, the second boss encounter against Zazz takes place. During the confrontation, Zazz has more simple pattern, but tries to still throw moon-shaped objects to the player's face.

Super Smash Bros. for Nintendo 3DS / Wii U
Windy Hill is set to make appearance as playable stage on the Wii U version of upcoming Super Smash Bros. for Nintendo 3DS / Wii U. Not much is known about the stage with only being featured in Wii U version of the game.

Trivia

 * In the Wii U version, bouncing off of the clouds causes Sonic to give off after-images and attract nearby rings. Neither of these effects occur in the 3DS version when bouncing off clouds.
 * Waterfalls with falling logs, are seen in act four which bear resemblance to Jungle Zone from 8-bit version of Sonic the Hedgehog.
 * Much of the designs used in this stage are based from Jade Gully Zone from the cancelled video game, Sonic X-treme.
 * Windy Hill is also the same name based off of a segment of Windy Valley. Interestingly, the game Windy Hill appears in (that being Sonic Lost World) has also the same name as a Sonic Adventure action stage.
 * In the 3DS version at the ends of the partially cylindrical stage are wooden mallets implying The Player is only limited to the left, center, and right side of the stage, as apposed the all four sides like in the Wii U version.
 * When Sonic is Parkour running on walls on the Wii U version, you can see Sonic's after-images when doing so, In the 3DS version red, and white stars are shown.
 * The music for act one of Windy Hill is similar to the music from Rooftop Run on Sonic Unleashed.
 * The stage has the same name as the AFL (Australian Football League) training ground Windy Hill which was Essendon's old training ground.
 * This stage has grass and trees, are seen in every act which resembles Green Hill Zone from Sonic the Hedgehog (1991).
 * In the Gamecom's demo, Act 4 didn't feature the second boss encounter with Zazz, as the act ends to regularly by opening the Capsule.