A level in a video game which is an altered version of an area you were in earlier. Sometimes you're visiting the same world in different time periods - be they separated by days, months or centuries. Other times, you're visiting another version of the area in an
Alternate Universe - maybe even a
Bizarro Universe.
Such areas nearly always happen to contain
Chaos Architecture, which 'explains' why the
Temple Of Doom that you visited in the present day has a radically different floor layout ten years in the future.
May overlap with
Dark World. Not to be confused with
Mirror Universe.
Examples:
- Amaterasu Server in Digimon World 3.
- Floria in the Kirby Super Star game Milky Way Wishes had you shifting between four seasons of the same level.
- Similarly, certain areas of Subspace Emissary in Super Smash Bros Brawl had you shifting between daytime and sunset of the same level, using it to remove an obstruction - on both sides - from one side, that would be indestructible on the other.
- The Legend Of Zelda: A Link To The Past had the Dark World, where a puzzle required you to drain water from one world and use the fact it was also drained from the other.
- Majora's Mask has the Stone Tower Temple, which you must flip from right-side up to upside down. Conditions in the "heads" version affect conditions in the "tails" version, and vice-versa.
- The Past in Oracle Of Ages.
- There was also a version of the Dark World near the end of the Subspace Emissary mode of Super Smash Bros. Brawl.
- The future in Ocarina of Time. Certain actions such as planting seeds in the past have effects on the future timeline.
- The upside-down castle in Castlevania: Symphony of the Night.
- The four different seasons of Click Clock Wood in Banjo-Kazooie.
- Non Videogame Example: The aptly named Mirror World from Kamen Rider Ryuki.
- Sonic CD's Past, Present, Bad Future and Good Future versions of the same levels.
- The shadow world thingy in Soul Reaver.
- Luigi's Mansion had the Hidden Mansion, which, in the PAL version only, was a mirrored version of the Normal Mansion made more difficult.
- Dark Aether in Metroid Prime 2: Echoes.
