A mockup of Dust Hill Zone.
Dust Hill Zone was the name given to a desert level intended to be featured in for the Sonic the Hedgehog 2 Sega Mega Drive.
Dust Hill Zone begins as a
desert, decorated with cacti and assorted plants. The color palette was designed to at some point change into that of a winter-themed stage, transforming the sand into snow and the cacti into Christmas trees. The player would navigate terrain both aboveground and belowground, where there were snow/sand tunnels.
Dust Hill Zone was created by Brenda Ross,
one of the final level artists added to the  Sonic 2 development team. It was referred to in an early concept sketch as Sabaku Zone (literally " Desert Zone"). Time constraints kept the zone from being added to the final product.
Dust Hill Zone is listed in the
Level Select of the Simon Wai prototype of Sonic the Hedgehog 2, but selecting it sends the player to Mystic Cave Zone. Brenda Ross called this level's palette swap "Winter Zone". 
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Gimmicks and obstacles
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Air Bubble | Chaos Emerald | Monitor ( Eggman, Extra Life, Flame Shield**, Invincible, Lightning Shield**, Power Sneakers, Random, S**, Shield, Super Ring, Teleporter, Water Shield**) | Ring | Star Circle
Sonic the Hedgehog 1&2 Soundtrack
Continue | Corkscrew loop | Death Egg Robot | Debug Mode | Egg Jet | Mega Mack | Perfect Bonus | Shuttle loop | Time Attack | Tornado | Totem pole | West Side Island | Winding Tunnel
*Exclusive to the prototype versions of
Sonic the Hedgehog 2. ** Exclusive to the 2013 re-release version.