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Tetris Guideline

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The Tetris Guideline is the current specification that The Tetris Company enforces for making all new (2001 and later) Tetris game products alike in form. A mode labeled "standard" or just plain "Tetris" will adhere to the Guideline more closely than other modes.

As of now, the Guideline is conjectured to encompass the following rules, learned through observation of the behavior of authentic Tetris games:

The Tetris company owns the copyright and trademark on all of these elements.

All the tetris guideline rules are confidential, and proprietary trade secrets.

Although Guideline-compliant games share many traits, they also have differences in many aspects as well. There are a few instances where a game will break a trait which is shared by all other games thought to be compliant. Examples of this include the lack of the hold function and the T-spin's ability to start and continue Back-to-Back chains in iPod Tetris, and the inverted rotation button layout of TGM3 and TGM ACE (or Kiwamemichi, depending on interpretation). No explanations have been given for the reasons of these games' deviations.

Certain games, such as Tetris Online (Japan) and the handheld electronic games by Radica Games defy the guidelines despite having "Authentic Tetris Game" labels.

Guideline Versions Edit

Huoted as revising the guideline annually. This may only adhere to 2005 and later, as so far only guideline 2002, 2005 and 2006 have been known to be in existence, and guideline 2002 games have been built from scratch and released as late as 2005.

So far, the first confirmed guideline 2005 games (TGM ACE) has been released in December 2005, while the first confirmed guideline 2006 game (Tetris: New Century, although iPod Tetris released earlier behaves similarly) was released in September 2006. Therefore, it can be conjectured that the schedule of a new guideline version is released somewhere between the middle to the latter half of the year.

While many games have no publicly visible indication of the guideline version by the developer or publisher, some games have had their exact guideline versions made clear by them. They are listed in the Guideline compliant game differences page.

See also Edit

References Edit

*Although A.R.E. looks a lot like an acronym, it does not stand for anything and is the romaji for the Japanese word for "it" or "that."

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